The Pinnixa Cristata Complex in the Western Atlantic, with Descriptions of Two New Species (Crustacea: Decapoda: Pinnotheridae)
Total Page:16
File Type:pdf, Size:1020Kb
The Pinnixa cristata Complex in the Western Atlantic, with Descriptions of Two New Species (Crustacea: Decapoda: Pinnotheridae) RAYMOND B. MANNING and DARRYL L. FELDER SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY • NUMBER 473 SERIES PUBLICATIONS OF THE SMITHSONIAN INSTITUTION Emphasis upon publication as a means of "diffusing knowledge" was expressed by the first Secretary of the Smithsonian. In his formal plan for the Institution, Joseph Henry outlined a program that included the following statement: "It is proposed to publish a series of reports, giving an account of the new discoveries in science, and of the changes made from year to year in all branches of knowledge." This theme of basic research has been adhered to through the years by thousands of titles issued in series publications under the Smithsonian imprint, commencing with Smithsonian Contributions to Knowledge in 1848 and continuing with the following active series: Smithsonian Contributions to Anthropology Smithsonian Contributions to Astrophysics Smithsonian Contributions to Botany Smithsonian Contributions to the Earth Sciences Smithsonian Contributions to the Marine Sciences Smithsonian Contributions to Paleobiology Smithsonian Contributions to Zoology Smithsonian Folklife Studies Smithsonian Studies in Air and Space Smithsonian Studies in History and Technology In these series, the Institution publishes small papers and full-scale monographs that report the research and collections of its various museums and bureaux or of professional colleagues in the world of science and scholarship. The publications are distributed by mailing lists to libraries, universities, and similar institutions throughout the world. Papers or monographs submitted for series publication are received by the Smithsonian Institution Press, subject to its own review for format and style, only through departments of the various Smithsonian museums or bureaux, where the manuscripts are given substantive review. Press requirements for manuscript and art preparation are outlined on the inside back cover. Robert McC. Adams Secretary Smithsonian Institution SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY • NUMBER 473 The Pinnixa cristata Complex in the Western Atlantic, with a Description of Two New Species (Crustacea: Decapoda: Pinnotheridae) Raymond B. Manning and Darryl L. Felder SMITHSONIAN INSTITUTION PRESS Washington, D.C. 1989 ABSTRACT Raymond B. Manning and Darryl L. Felder. The Pinnixa cristata Complex in the Western Atlantic, with Descriptions of Two New Species. Smithsonian Contributions to Zoology, number 473, 26 pages, frontispiece, 14 figures, 1989.—The Pinnixa cristata Complex, all members of which appear to be commensals of ghost shrimps, Family Callianassidae, or burrowing worms, comprises six species in the western Atlantic: P. aidae Righi, from Brazil; P. behreae, new species, from the northern and northwestern Gulf of Mexico; P. chacei Wass, from Alabama to the northwestern coast of Florida in the Gulf of Mexico; P. cristata Rathbun, from the Atlantic coast of the southeastern United States and from slightly variant forms from two localities in the Gulf of Mexico; P. gorei, new species, from southeastern Florida and Little Cayman Island, Caribbean Sea; and P. patagoniensis Rathbun, from Brazil to Argentina. OFFICIAL PUBLICATION DATE is handstamped in a limited number of initial copies and is recorded in the Institution's annual report, Smithsonian Year. SERIES COVER DESIGN: The coral Montastrea cavernosa (Linnaeus). Library of Congress Cataloging in Publication Data Raymond B. Manning The Pinnixa cristaU complex in the western Atlantic, with a description of two new species (Crustacea, Dccapoda, Pinnotheridae) (Smithsonian contributions to zoology ; no. 473) Bibliography: p. Supt of Docs, no.: SI 1.27:473 I. Pinnixa—Atlantic Ocean—Classification. I. Felder, Darryl L. II. Title. III. Series. QL1.S54 no. 473 [QL444.M33] 591s 89-600111 [595J'842] Contents Page Introduction 1 Collecting Sites near Fort Pierce 1 Callianassid Associates of Pinnixa 2 Methods 2 Repositories 3 Acknowledgments 3 Family PINNOTHERIDAE De Haan, 1833 3 Genus Pinnixa White, 1846 3 Western Atlantic Species of Pinnixa 3 The Pinnixa cristata Complex 3 Key to Western Atlantic Species of the Pinnixa cristata Complex 4 Pinnixa aidae Righi, 1967 4 Pinnixa behreae, new species 6 Pinnixa chacei Wass, 1955 9 Pinnixa cristata Rathbun, 1900 11 Pinnixa gorei, new species 17 Pinnixa patagoniensis Rathbun, 1918 20 Discussion 22 Literature Cited 25 in FRONTISPIECE—Pinnixa behreae, new species, paratypes, Grand Terre (USLZ 2954): a, male, cb 7.6 mm; b, male, cb 7.8 mm. Pinnixa chacei Wass, 1955, Sanu Rosa Island (USLZ 2952): c, male, cb 8.8 mm; d, female, cb 6.3 mm. Pinnixa cristata Rathbun, 1900, St. Lucie, Atlantic (USLZ 2953): e, male, cb 6.3 mm;/, female, cb 6.9 mm. Pinnixa gorei, new species, paratypes, St. Lucie, Atlantic (USLZ 2951): g, male, cb 7.2 mm; h, female, cb 7.6 mm. The Pinnixa cristata Complex in the Western Atlantic, with Descriptions of Two New Species (Crustacea: Decapoda: Pinnotheridae) Raymond B. Manning and Darryl L. Felder Introduction the new species on the east coast of Florida when sampling was extended south to the Lake Worth Inlet and Miami. Also, In 1982, one of us (R.B.M.) initiated studies on infaunal decapods from the vicinity of the southern Indian River lagoon, collections by one of us (D.L.F.) and by Richard Heard, Gulf eastern coast of Florida, using the Smithsonian Marine Station Coast Research Laboratory, in the northern and western Gulf at Link Port, Fort Pierce, as a base of operations. One of the of Mexico yielded additional members of the P. cristata first areas investigated was a sand beach habitat on the Atlantic Complex, including specimens of P. cristata proper, until now coast just north of the St. Lucie Inlet, at the southern end of known only from the Atlantic coast of the United States, and the Indian River (St. Lucie site of Gore, Scotto, and Becker, material of a second undescribed species. The new species that 1978). Here a narrow sand flat, situated between the sand beach we found necessitated a review of the members of the P. shore and an emergent sabellariid worm reef, was sampled cristata Complex in the western Atlantic. The results of that several times with a commercial yabby pump, a suction pump review are presented herein. that greatly facilitates the collection of burrowing organisms COLLECTING SITES NEAR FORT PIERCE.—Much of the (see accounts in Hailstone and Stephenson, 1961, and material reported herein was collected in the vicinity of the Manning, 1975). Among the decapods collected at this site Indian River lagoon, Florida, or on beaches of the adjacent were two similar but distinct species of Pinnixa, both of which Atlantic Ocean, at the following collection sites (Figure 1): keyed to Pinnixa cristata Rathbun in Rathbun (1918) as well Sebastian North: Indian River County, north side of Sebastian Inlet, flat as in Williams (1965); one of the two proved to be undescribed. immediately west of Sebastian Bridge; 27°51.6'N, 80°2TW; RBM stations: Subsequent sampling by us in the Indian River from FP-84-3, R.B. and L.K. Manning, 9 Jul 1984; FP-84-9, M. Schotte, W.D. localities between Sebastian Inlet to the north and St. Lucie Lee, R.B. Manning, 19 Sep 1984; FP-85-5, R.B. Manning, H. Reichardt, M.L. Reaka, 13 Aug 1985. Inlet to the south (Figure 1) yielded numerous additional Sebastian South: Indian River County, Indian River, south side of Sebastian representatives of Pinnixa. Many of these proved to be true P. Inlet, shallow flat with some grass at western end of inlet; 27°50.8'N, cristata, but no representatives of the second species or any 80°27.4'W; RBM station: FP-84-2, R.B. and L.K. Manning, 8 Jul 1984. other members of the P. cristata Complex were taken in other Fort Pierce Inlet, Dynamite Point: St. Lucie County, Indian River, north side areas of the Indian River lagoon. We added other localities for of Fort Pierce Inlet; 27°28.3'N, Wn.W; RBM station: FP-85-6, R.B. Manning and M.L. Reaka, 14 Aug 1985. Fort Pierce Inlet, Coon Island: St. Lucie County, Indian River, north side of Raymond B. Manning, Department of Invertebrate Zoology, National Fort Pierce Inlet, South side of Coon Island, 27°28.2'N, 80° 18.2'W; RBM Museum of Natural History, Smithsonian Institution, Washington, stations: FP-85-2, R.B. Manning, D.L. Fcldcr, and W.D. Lee, 18 Jul 1985; DC 20560; Darryl L. Felder, Department of Biology and Center for FP-85-7, R.B. Manning. M.L Reaka, W.D. Lee, and II. Reichardt, 14 Aug Crustacean Research, University of Southwestern Louisiana, Lafay- 1985. ette, La 70504. Fort Pierce Inlet, Little Jim site: St. Lucie County, Indian River, north side of SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY Jr., 13 Jul 1982; FP-82-3, R.B. Manning and C.W. Hart, Jr., 14 Jul 1982; FP-82-5. R.B. Manning and C.W. Hart, Jr., 15 Jul 1982; FP-82-7, R.B. Manning, 16 Jul 1982; FP-83-3, R.B. and L.K. Manning, 8 Jul 1983; FP-83-6, R.B. and L.K. Manning, W.D. Lee, 13 Jul 1983; FP-84-1, R.B. 30 and L.K. Manning, 7 Jul 1984; FP-84-4, R.B. and L.K. Manning, D.L Felder, and W.D. Lee, 10 Jul 1984; FP-85-3, R.B. Manning and D.L. Felder, 19 Jul 1985. Lake Worth Inlet, Peanut Island site: Palm Beach County, Lake Worth, Peanut Island, tidally washed flats on north side of island, varying from clean sand to shelly sand; 26°46.7'N, 80°02.9'W; RBM stations: FP-87-8, D.L Felder, W.D. Lee, P. Mikkelsen, and R. Bieler, 10 Aug 1987; FP-87-9. D.L. Fclder and W.D.