Paul Hargraves Publications
Bibliography: 1967-2012.
Key:
J
Articles in Professional Journals
A
Abstracts of Conference Presentations (1997–2006 only)
C
Papers in Conference Proceedings
B
Books and Book Sections
P
Popular Articles
R
Reports [35 total reports; not included here]
O
Other
T
Thesis
1967
J
Hargraves, P.E. and R.D. Wood. Periphyton algae in selected aquatic habitats.
Int. Jour. Oceanol. Limnol. 1: 55–67.
1968
J
Hargraves, P.E. Two naturally occurring abnormalities of the diatom Podocystis
adriaatica. Rhodora 70: 292–294.
T
Hargraves, P.E. Species Composition and Distribution of Net Plankton Diatoms from
the Pacific Sector of the Southern Ocean. Ph.D. Dissertation, School of Marine Science, College of William &
Mary. 171p.
1969
J
Wood, R.D. and P.E. Hargraves. Comparative benthic plant ecology by
SCUBA-monitored quadrat. Hydrobiologia 33: 561–586.
1970
J
Hargraves, P.E., R.W. Brody and P.R. Burkholder. A study of phytoplankton in the
Lesser Antilles region. Bull. Mar. Sci. 20: 331–349.
1971
J
Hargraves, P.E. and M. Levandowsky. Fine structure of some brackish pond diatoms.
Nova Hedw. 21: 321–332.
1972
J
Hargraves, P.E. Studies on marine plankton diatoms. I. Chaetoceros
diadema (Ehr.) Gran: life cycle, structural morphology, and regional distribution. Phycologia
11: 247–257.
1974
J
Hargraves, P.E. and B. Miller. The ebridian flagellate Hermesinum
adriaticum Zach. Arch. Protistenk. 116: 280–284.
J
Hargraves, P.E. and R.R.L. Guillard. Structural and physiological observations on
some small marine diatoms. Phycologia 13: 163–172.
1975
J
Vargo, G., P.E. Hargraves and P. Johnson. Scanning electron microscopy of dialysis
tubes incubated in flowing seawater. Mar. Biol. 31: 113–120.
C
Hargraves, P.E. and F.W. French. Observations on the survival of diatom resting
spores. Nova Hedw. Beih. 53: 229–238.
1976
J
Hargraves, P.E. Studies on marine plankton diatoms. II. Resting spore morphology.
J. Phycol. 12: 118–128.
J
Hargraves, P.E. Studies on marine plankton diatoms. III. Structure and
classification of Gosssleriela tropica. J. Phycol. 12: 285–291.
P
Hargraves, P.E. Choanoflagellates: organisms on the plant/animal borderline.
Maritimes 20(4): 11–13.
1978
O
Hargraves, P.E. Book Review of: Hillson, C.J. Seaweeds: A Color-coded
Illustrated Guide to Common Marine Plants of the East Coast of the United States. Penn State Univ.
Press, 1977. In: Plant Sci. Bull., March, p. 10.
1979
C
Hargraves, P.E. Studies on marine plankton diatoms. IV. Morphology of
Chaetoceros resting spores. Nova Hedw. Beih. 63: 99–120.
J
Gardiner, W. and P.E. Hargraves. Pyramimonas amylifera Conrad
(Prasinophyceae): Seasonal dynamics of a world population and the effects of temperature and salinity on growth
and survival in culture. J. Plankt. Res. 1: 291–300.
1980
J
Hargraves, P.E. and R. Steele. Morphology and ecology of Oltamannsiella
virida, sp. nov. (Chlorophyceae: Volvocales). Phycologia 19: 96–102.
J
French, F.W. and P.E. Hargraves. Physiological characteristics of plankton diatom
resting spores. Mar. Biol. Let. 1: 185–195.
J
Hargraves, P.E. and W. Gardiner. The life history of Pyramimonas
amylifera Conrad (Prasinophyceae). J. Plankt. Res. 2: 99–108.
O
Hargraves, P.E. Review of: Van Landingham, S.L. Catalogue of the Fossil and
Recent Genera and Species of Diatoms and their Synonyms, Volume VII. In: Phycologia 19: 87.
O
Hargraves, P.E. Review of: Ibid., Volume VIII. In: Phycologia 19:
339–340.
1981
J
Hargraves, P.E. Seasonal variation in tintinnids (Ciliophora: Oligotrichida) in
Narragansett Bay, Rhode Island, USA. J. Plankt. Res. 3: 81–91.
J
Hargraves, P.E. and R. Viquez. The dinoflagellate red tide in Golfo Nicoya, Costa
Rica. Revista Biol. Trop. 29: 31–38.
1982
J
Hargraves, P.E. and R. Viquez. Dinoflagellate abundance in the Laguna Botos de
Poas Volcano, Costa Rica. Revista Biol. Trop. 29: 257–264.
J
Hargraves, P.E. and R. Viquez. Ocurrencia, estructura y significado potencial de
Spirulina subsalsa Oersted en Costa Rica. Revista Biol. Trop. 29: 304–308.
J
Hargraves, P.E. Productivity measurements in benthic habitats at Carrie Bow Cay,
Belize. Smithson. Contr. Mar. Sci. 12: 109–114.
J
Hargraves, P.E. Plankton diatoms from Belize coastal waters. Smithson. Contr.
Mar. Sci. 12: 153–166.
B
Hargraves, P.E. and F.W. French. Introduction and Bibliography to Planktonic
Marine Microalgae. In: Selected Papers in Phycology, II, J. Rossowski & B. Parker, Eds., pp.
557–562.
B
Hargraves, P.E. and F.W. French. Diatom resting spores: significance and
strategies. In: Survival Strategies in the Algae, G.S. Fryxell, Ed. Cambridge Univ. Press, NY. pp.
49–68.
1983
J
Brahma, S.K., P.E. Hargraves, W.F. Howard, Jr. and W.H. Nelson. A resonance Raman
method for the rapid detection and identification of algae in water. Appl. Spectrosc. 37: 55–58.
1985
J
Kennett, D.M. and P.E. Hargraves. Subtidal benthic diatoms from a stratified
estuarine basin. Bot. Mar. 27: 169–183.
C
Hargraves, P.E. Resting spore formation in the marine diatom Ditylum
brightwellii. Proc. VII International Diatom Symposium, pp. 33–46.
J
Estep, L., P. Davis, P.E. Hargraves and J. Sieburth. Chloroplast-containing
microflagellates in natural populations of North Atlantic nanoplankton, their identification and distribution of
five new species of Chrysochromulina. Protistologica 20: 613–614.
J
French, F.W. and P.E. Hargraves. Spore formation in the life cycles of the diatoms
Chaetoceros diadema and Leprocylindrus danicus. J. Phycol. 21: 477–483.
J
Kennett, D.M. and P.E. Hargraves. Benthic diatoms and sulfide fluctuations: upper
basin of Pettaquamscutt River, R.I. Est. Coast. Shelf Sci. 21: 557–567.
J
Hargraves, P.E. and R. Viquez. Spatial and temporal distribution of phytoplankton
in the Golfo de Nicoya, Costa Rica. Bull. Mar. Sci. 35: 577–585.
1986
J
Winter, A., D. Stockwell and P.E. Hargraves. Tintinnid agglutination of
coccoliths: A selective or random process? Mar. Micropal. 10: 375–379.
J
French, F.W. and P.E. Hargraves. Population dynamics of the spore-forming diatom
Leptocylindrus danicus in Narragansett Bay, Rhode Island. J. Phycol. 22(4): 411–420.
C
Hargraves, P.E. The relationship of some fossil diatom genera to resting spores.
Proc. VIII International Diatom Symposium, Paris. pp. 67–80.
C
Rines, J.B. and P.E. Hargraves. Considerations of the taxonomy and biogeography of
Chaetoceros ceratosporus and Chaetoceros rigidus. Proc. VIII International Diatom
Symposium, Paris. pp. 97–112.
C
Stockwell, D. and P.E. Hargraves. Morphological variation in resting spores of the
diatom genus Chaetoceros. Proc. International Diatom Symposium, Paris. pp. 81–96.
P
Hargraves, P.E. The Mysterious Bay Bloom of 1985. Maritimes 30(2): 7–9.
1987
J
Rines, J.B. and P.E. Hargraves. The seasonal distribution of the marine diatom
genus Chaetoceros Ehr. in Narragansett Bay, RI (1981–1982). J. Plankt. Res. 9: 917–933.
1988
B
Hargraves, P.E. Phytoplankton in Narragansett Bay. In: Freshwater and Marine
Plants of Rhode Island, Sheath & Harlin, Eds. pp. 136–142.
B
Kennett, D. and P.E. Hargraves. Benthic diatoms. In: Freshwater and Marine
Plants of Rhode Island, Sheath & Harlin, Eds. pp. 127–135.
J
Tracey, G.A., P.W. Johnson, R.W. Steele, P.E. Hargraves and J.McN. Sieburth. A
shift in photosynthetic picoplankton composition and its effects on bivalve mollusc nutrition: the 1985 "brown
tide" in Narragansett Bay. J. Shellfish Res. 7: 671–675.
C
Stockwell, D.A. and P.E. Hargraves. Distribution and size variation in
Chaetoceros radicans and Chaetoceros debilis within the diatomaceous muds of the Guaymas Basin
and Guaymas Basin Slope, Gulf of California. Proc. Ninth Int'l Diatom Symposium, Bristol, England. pp.
219–231.
B
Rines, J.B. and P.E. Hargraves. The Chaetoceros Ehrenberg
(Bacillariophyceae) flora of Narragansett Bay, RI, U.S.A. Bibliotheca Phycologica, Bd. 79. 196 pp.
J
Sieburth, J.McN., P.W. Johnson and P.E. Hargraves. Ultrastructure and ecology of
Aureococcus anophagefferens gen. et sp. nov. (Chrysophyceae); the dominant picoplankter during a bloom
in Narragansett Bay, Rhode Island, summer 1985. J. Phycol. 24: 416–425.
J
Johnson, P.W., J.McN. Sieburth and P.E. Hargraves. Ultrastructure and ecology of
Calycomonas ovalis Wulff 1919 (Chrysophyceae) and its redescription as a testate rhizopod
Paulinella ovalis n. comb. (Filosea: Euglyphina). J. Protozool. 35: 618–626.
J
Baek, M., W.H. Nelson, P.E. Hargraves, J.F. Tanguay and S.L. Suib. The
steady-state and decay characteristics of protein tryptophan fluorescence from algae. Appl.
Spectroscopy 42: 1405–1412.
1989
J
Baek, M., W.H. Nelson and P.E. Hargraves. Ultra-violet resonance Raman spectra of
live cyanobacteria with 222.5–251.0 nm pulsed laser excitation. Appl. Spectroscopy 43: 159–162.
C
Hargraves, P.E., R.D. Vaillancourt and G.A. Jolly. Autotrophic picoplankton in
Narragansett Bay and their interaction with microplankton. In: Novel Phytoplankton Blooms, E. Cosper,
V.M. Bricelj & E. Carpenter, Eds. Lect. Notes Coast. Est. Stud., Springer Verlag, Heidelberg. pp. 23–38.
1990
J
Rines, J.B. and P.E. Hargraves. Morphology and taxonomy of Chaetoceros
compressus Lauder 1864 var. hirtisetus var. nova, with preliminary consideration of closely
allied taxa. Diat. Res. 5: 115–129.
J
Hargraves, P.E. Studies on marine plankton diatoms. V. Morphology and distribution
of Leptocylindrus minimus Gran. Nova Hedw. Beih. 100: 47–60.
1991
P
Hargraves, P.E. Narrow River phytoplankton. Maritimes 35(2): 6–8.
1993
J
Guillard, R.R.L. and P.E. Hargraves. Stichochrysis immobilis is a diatom,
not a chrysophyte. Phycologia 32: 234–236.
P
Hargraves, P.E. Scientists track effects of light on plankton. At the Bay
Campus 12(1): 1.
J
Rines, J.B. and P.E. Hargraves. An investigation of the morphology, taxonomy, and
life history of Chaetoceros crucifer Gran 1931 (Bacillariophyceae). Nova Hedw. Beih. 106:
169–184.
C
Wang, R., L. Maranda, P.E. Hargraves and Y. Shimizu. Chemical variation of
Nitzschia pungens as demonstrated by the co-occurrence of domoic acid and bacillariolides. In:
Proc. Fifth Int'l Conf. Toxic Marine Phytoplankton, T.J. Smayda & Y. Shimizu, Eds. pp. 637–641.
J
Hargraves, P.E., J. Zhang, R. Wang and Y. Shimizu. Growth characteristics of the
diatoms Pseudonitzschia pungens and Pseudonitzschia fraudulenta exposed to ultraviolet
radiation. Hydrobiologia 269/270: 207–212.
1994
J
Hargraves, P.E. and A.M. Schmid. Morphology, growth characteristics and cytology
of the diatom Planktoniella sol (Wall.) Schutt. Mem. Calif. Acad. Sci. 17: 221–234.
P
Hargraves, P.E. Narrow River: Life in a drop of water. Narrow River
Notes, Winter 1994: 3–4.
1995
J
Viquez, R. and P.E. Hargraves. Annual cycle of potentially harmful dinoflagellates
in the Golfo de Nicoya, Costa Rica. Bull. Mar. Sci. 57(2): 467–475.
1996
B
Schmid, A.M. and P.E. Hargraves. Planktoniella sol – morphological and
x-ray analyses of the "wing". In: A Century of Diatom Research in North America: A Tribute to the
Distinguished Careers of Charles W. Reimer and Ruth Patrick, J.P. Kociolek & M.J. Sullivan, Eds.
Koeltz Sci. Books. pp. 111–123.
1997
J
Riaux-Gobin, C., P.E. Hargraves, J. Neveux, L. Oriol and G. Vétion. Microphyte
pigments and resting spores at the water-sediment interface in subantarctic deep-sea (Indian Sector of the
Southern Ocean). Deep-Sea Res. II 44: 1033–1051.
J
Yao, Y., W.H. Nelson, P.E. Hargraves and J. Zhang. UV resonance Raman study of
domoic acid, a marine neurotoxic amino acid. Appl. Spectroscopy 51(6): 785–791.
J
DeYoe, H., D.A. Stockwell, R.R. Bidigare, M. Latasa, P.W. Johnson, P.E. Hargraves
and C.A. Suttle. Description of the algal species Aureoumbra lagunensis gen. et sp. nov. and suggested
reassignment of Aureococcus anophagefferens based on ultrastructural, pigment, and 18S ribosomal RNA
sequence data. J. Phycol. 33: 1042–1046.
J
Keller, A.A., P.E. Hargraves, H. Jeon, G. Klein-MacPhee, E. Klos, C. Oviatt and J.
Zhang. Ultraviolet-B radiation enhancement does not affect marine trophic levels during a winter-spring bloom.
Ecoscience 4(2): 129–139.
J
Keller, A., P.E. Hargraves, H. Jeon, G. Klein-Macphee, E. Klos, C. Oviatt and J.
Zhang. The effects of ultraviolet-B enhancement on marine trophic levels in stratified coastal systems. Mar.
Biol. 130: 277–287.
P
Hargraves, P.E. The diatom collections in Rhode Island. RINH News 4(1):
7–8.
A
Shimizu, Y., L. Maranda, P.E. Hargraves, N. Zheng, J. Zhang and I. Bauer. Mass
Culture System for Microalgal Production of Biomedical Agents. 37th Ann. Mtg. Amer. Pharmacognosy Society, Santa
Cruz, 1/97.
1998
O
Hargraves, P.E. Review of "Identifying Marine Phytoplankton." EOS,
February 24, p. 99.
A
Maranda, L., J. Zhang, N. Zheng, E. Klos, P.E. Hargraves and Y. Shimizu. Large
scale culture of marine photosynthetic microalgae for biomedical production. 52nd Ann. Mtg. Phycological Soc.
Amer., Flagstaff, 8/98.
A
Shimizu, Y., L. Maranda, P.E. Hargraves, N. Zheng and J. Zhang. Mass culturing of
dinoflagellates and other microalgae for biomedical agents. Invited talk at Marine Microbiology Symp., Soc.
Indust. Microbiol., Denver, 8/98.
A
Nelson, W.H., Q. Wu and P.E. Hargraves. The spectral detection of domoic acid.
PITTCON '98, New Orleans, 3/98.
A
Epstein, B., S. D'Hondt, J.G. Quinn, T. Herbert, J. Schuffert and P.E. Hargraves.
The response of UK37 values to non-thermal factors in several E. huxleyi clones. AGU Mtg., Spring 98,
Boston, MA.
J
Epstein, B., S. D'Hondt, J.G. Quinn, J. Zhang and P.E. Hargraves. The effect of
nutrient-related factors on alkenone-based sea-surface temperature estimates. Paleoceanography 13:
122–126.
J
Wu, Q., W.H. Nelson and P.E. Hargraves. Differentiation of algal clones on the
basis of resonance Raman spectra excited by visible light. Anal. Chem. 70: 1782–1787.
1999
J
Wu, Q., W.H. Nelson, J.M. Treubig, P.E. Hargraves, et al. The rapid UV resonance
Raman detection and quantitation of domoic acid in phytoplankton. Anal. Chem. 72: 1666–1671.
A
Wu, Q., W.H. Nelson, P.E. Hargraves, J.M. Treubig, P. Brown, M. Feld and R.
Manoharan. Quantitation of DA in phytoplankton cells by UV resonance Raman spectroscopy. PITTCON '99, Orlando,
FL, March 1999.
A
Menezes, S. and P.E. Hargraves. Community trends among nanoplankton in the
Pettaquamscutt River estuary, RI, USA. ASLO 1999 Aquatic Sciences Meeting, Santa Fe, NM, Feb. 1999.
2000
A
Maranda, L., M.D. Keller, J. Hurst, L. Bean, J. McGowan & P. Hargraves.
Spatio-temporal distribution of Prorocentrum lima in coastal waters of the Gulf of Maine: A two-year
survey. NEAS 39th Ann. Mtg., 4/2000.
B
Maranda, L., M.D. Keller, J. Hurst, L. Bean, J. McGowan & P. Hargraves.
Spatio-temporal distribution of Prorocentrum lima in coastal waters of the Gulf of Maine: A two-year
survey. J. Shellfish Res. 19: 1003–1006.
P
Hargraves, P.E. Bioinvasions: when alien species displace native species.
Maritimes, Winter 2000: 1–2.
2001
A
Menezes, S. & P.E. Hargraves. Nanoplankton species diversity along an
estuarine gradient in the Pettaquamscutt River, RI, USA. ASLO Aquatic Sciences Mtg., Albuquerque, NM., Feb.
2001.
J
Epstein, B., S. D'Hondt & P.E. Hargraves. The possible metabolic roles of C-37
alkenones in Emiliania huxleyi. Organic Geochem. 32: 867–875.
O
Hargraves, P.E. Family Resemblance (letter/editor). Nat. Hist. 9/01: 14.
2002
J
Hargraves, P.E. & L. Maranda. Potentially toxic or harmful microalgae from the
northeast coast. Northeast Nat. 9(1): 81–120.
J
Hargraves, P.E. The ebridian flagellates Ebria and Hermesinum.
Plankt. Biol. Ecol. 49(1): 9–17.
J
Lundholm, N., G.R. Hasle, G.A. Fryxell & P.E. Hargraves. Morphology,
phylogeny, and taxonomy of species within the Pseudo-nitzschia americana complex (Bacillariophyceae)
with descriptions of two new species. Phycologia 41: 480–497.
J
Hargraves, P.E. Diatoms of the Indian River Lagoon, Florida: An annotated account.
Florida Scient. 65: 225–244.
A
Menezes, S. & P.E. Hargraves. Nutrients and nanoplankton: as the flagellate
turns. ASLO Aquatic Sciences Mtg., Victoria, BC, Canada. 6/02.
A
Maranda, L., S. Corwin, P.E. Hargraves, L. Bean, S. Eaker, T. Leighfield & S.
Morton. Prorocentrum lima in New England coastal waters: Population dynamics and toxicity. 10th Int'l
Conf. on Harmful Algal Blooms, St. Petersburg, FL, 10/02.
A
Hargraves, P.E. Hidden Biodiversity in the Indian River Lagoon. Invasive Species
Workshop, Tampa, FL, Nov. 2002.
2003
A
Miranda, L., H. Zhang, P. Hargraves & S. Lin. Phytoplankton diversity along
the eastern-western nutrient gradient in Long Island Sound: taxonomic and phylogenetic approaches. (ASLO
meeting, 2/04).
C
Oviatt, C., C. Goodsill, P. Hargraves, R. Kelly, M. Kirs, L. Maranda, C.
McClennen, S. Moran, D. Outram, D.C. Smith, B. Sullivan, K. Whitman. Chlorine dioxide as an effective ballast
water treatment: results of bench-scale assays on its toxicity to marine organisms. Proc. 9th International
Conference on Marine Engineering Systems, Helsinki. 4pp.
2004
C
Zingone, A., E. Garces, B. Reguera, D.M. Anderson, S. Bates, S. Blackburn, C.
Bolch, B. Dale, M. Elbrachter, P. Hargraves, et al. EU-LIFEHAB: Expanding the discussion on the life cycles of
harmful algae. In: Harmful Algae 2002. Proceedings of the Xth International Conference on Harmful
Algae, Steidinger, K., J. Landsberg, C. Tomas & G. Vargo (eds.). Florida Fish and Wildlife
Commission and International Oceanographic Commission of UNESCO.
C
Maranda, L., S. Corwin, P. Hargraves, L. Bean, S. Eaker, T. Leighfield, S. Morton.
Prorocentrum lima in New England coastal waters: population dynamics and toxicity. Pp. 355–357 in:
Harmful Algae 2002. Proceedings of the Xth International Conference on Harmful Algae, Steidinger, K.,
J. Landsberg, C. Tomas & G. Vargo (eds.). Florida Fish and Wildlife Commission and International
Oceanographic Commission of UNESCO.
A
Menezes, S. & P. Hargraves. Species diversity patterns of choanoflagellates in
the Pettaquamscutt River Estuary, Rhode Island, USA. 2004 Annual Mtg., Society of Protozoology. Smithfield, RI,
6/04.
2005
A
Kooistra, Hargraves, Andersen, Balzano, Zingone, Sarno. Pseudo-cryptic diversity
and phylogeography in the centric diatom Skeletonema. 8th Phycol. Congress, Durban, S.A., Aug. 2005.
A
Maranda, Corwin, Hargraves, Morton. Prorocentrum lima in northeastern USA
coastal waters: abundance, distribution and toxin transfer. US-HAB conference, Asilomar, CA, Oct. 2005.
2006
J
Kuhn, S., G. Klein, H. Halliger, P. Hargraves & L. Medlin. A new diatom,
Mediopyxis helysia, gen. et sp. nov. from the North Sea and the Gulf of Maine as determined from
morphological and phylogenetic characteristics. Nova Hedwigia 130: 307–324.
J
Marshall, H.G., P. Hargraves, M. Elbrachter, J. Burkholder, M. Parrow, E. Allen,
V. Knowlton, P. Rublee, W. Hynes, T. Egerton, D. Remington, K. Wyatt, K. Coyne, A. Lewitus, & V. Henrich.
Taxonomy of Pfiesteria. Harmful Algae 5: 481–496.
2007
J
Sarno, D., W.H.C.F. Kooistra, S. Balzano, P. Hargraves & A. Zingone. Diversity
in the genus Skeletonema (Bacillariophyceae): III. Phylogenetic position and morphological variability
of Skeletonema costatum and Skeletonema grevillei with the description of Skeletonema
ardens sp. nov. J. Phycol. 43(1): 156–170.
J
Maranda, L., S. Corwin & P. Hargraves. Prorocentrum lima
(Dinophyceae) in northeastern USA coastal waters: I. Abundance and distribution. Harmful Algae 6(5):
623–631.
2008
B
Viquez, R. & P.E. Hargraves. Section IV, Chapter 1, Phytoplankton. Pp. 97–123.
In: Wehrtman, I.S. & J. Cortes (eds.). Marine Biodiversity of Costa Rica, Central America. Springer
Verlag, Netherlands.
J
Hargraves, P.E. Allelopathy at the land/sea interface: microalgae and Brazilian
pepper. Mar. Env. Res. 66: 553–555.
2009
J
Rey, J., P.E. Hargraves & S.M. O'Connell. Effect of selected microalgae on
development and survival of the mosquito Aedes aegyptii. Aquat. Ecol. 43: 987–997.
2011
J
Hargraves, P.E. & M.D. Hanisak. The significance of chlorophyll size
fractionation in the Indian River Lagoon, Florida. Florida Scientist 74: 151–167.
J
Prasad, A.K.S.K., J.A. Nienow & P.E. Hargraves. Plicate species of the diatom
genus Thalassiosira (Bacillariophyta) from the Atlantic and Gulf coasts of southeastern United States,
with the description of T. livingstoniorum sp. nov. Proceedings of the Academy of Natural Sciences
of Philadelphia 161: 1–34.
2012
J
Sterrenberg, F., W.E. Herwig & P.E. Hargraves. Gyrosigma tenerrimum
sp. nov. and Gyrosigma subtile sp. nov. (Pleurosigmataceae, Bacillariophyta). Botanica Marina
(submitted).