PfeREZ FARFANTE: ROCK SHRIMP GENUS SICYONIA 



important ones by far being those off Cape Canav- 

 eral and Fort Pierce), and in the Gulf of Mexico off 

 the coast of Florida (those off Apalachicola and 

 Pensacola the most productive of the entire region) 

 and western Texas. The production of the Caroli- 

 nas was insignificant in 1982, last year for which 

 landings are available. 



This species is also exploited in Mexico off Isla 

 Contoy, Quintana Roo, and in Bahia de Campeche. 

 Arreguin Sanchez (1981) estimated that until 

 1978-79 the fishery off Isla Contoy, under optimal 

 conditions, could have produced as much as 450 t 

 (992,070 lb) of heads-on shrimp. 



Remarks. — This species was first recorded from 

 the eastern Pacific by Burkenroad (1934a). His 

 record was based on a single specimen reportedly 

 taken by the Pawnee off southern Mexico, in the 

 Gulf of Tehuantepec, at lat. 14°40'20"N, long. 

 92°40'30"W. Later, Chapa Saldaha (1964) recorded 

 five lots of this shrimp from the coast of Oaxaca, 

 Golfo de Tehuantepec, which were in the collec- 

 tions of the Institute Nacional de Investigaciones 

 Biologico-Pesqueras, Mexico. Unfortunately, these 

 specimens are no longer extant (Concepcion Ro- 

 driguez de la Cruz^). Presence of S. brevirostris has 

 not been confirmed by subsequent investigations 

 in the region, including that of Sosa Hernandez et 

 al. (1980), who conducted a survey of the decapod 

 crustaceans in the general area from which Bur- 

 kenroad's and Chapa Saldaha's materials were ob- 

 tained. Furthermore, representatives of the 

 species were not found in the large collections of 

 penaeoids from the Pacific coast of Mexico and 

 Central America examined by me. Because of the 

 large size of this shrimp (it may reach 153 mm), it 

 should have been retained by the commercial 

 shrimp trawls or other gear used off southern 

 Mexico. The surprising fact that it has not been 

 recorded from commercial catches since the ap- 

 pearance of Chapa Saldana's report nor from col- 

 lections resulting from exploratory work raises 

 the possibility that the specimens cited above 

 either bear incorrect data (as might be true of the 

 correctly identified specimen examined by Bur- 

 kenroad) or were misidentified. 



McConnell (1960) reported this species from 

 Guyana, but because it has not been recorded in 

 studies (including my own) made of large collec- 

 tions of penaeoids obtained by research vessels and 



"Concepcion Rodriguez de la Cruz, Institute National de 

 Pesca, Secretaria de Pesca, Mexico, D.F., Mexico, pers. commun.. 

 May 1983. 



shrimp trawlers in the waters of that country or in 

 any others south of Cuba, its presence there needs 

 confirmation. 



This is the only species for which full biblio- 

 graphic references are not given. Because of its 

 abundance, accessibility, and economic value, the 

 literature on this shrimp is extensive. As stated 

 above, much of it is cited in the works of Cobb et al. 

 (1973) and Huff and Cobb (1979), consequently, I 

 am including those references in which synonyms 

 were created, articles not cited by them, others 

 which appeared subsequent to their contributions, 

 and all of those cited in the treatment below. 



Material. — 281 specimens from 66 lots. 



Eastern Pacific — 1 specimen. 



Mexico — Chiapas: Id, YPM, off Puerto Madero, 

 9 April 1926, Pawnee. 



Western Atlantic — 280 specimens from 64 lots. 



United States — North Carolina: 45 29, 

 USNM, off Rodanthe, 49 m, 20 October 1884, Al- 

 batross stn 2296. 14(? 129 , USNM, off Cape Hat- 

 teras, 64 m, 21 June 1957, Combat stn 396. 19, 

 USNM, NE of Cape Hatteras, 55 m, 26 July 1969, 

 Oregon II stn 10697. 36 39, USNM, off Raleigh 

 Bay, 26 m, 30 July 1969, Oregon II stn 10738. 26 

 69, USNM, off Raleigh Bay, 33 m, 27 May 1962, 

 Silver Bay stn 4028. Id, USNM, SE of Cape 

 Lookout, 37 m, 12 March 1961, Silver Bay stn 

 2913. 39, USNM, off Cape Lookout, 43 m, 21 

 June 1957, Combat stn 397. Id 39, USNM, 

 Onslow Bay, 46 m, 2 August 1962, Silver Bay stn 

 4196. South Carolina: 2d , USNM, off Port 



Royal Sound, 51-44 m, 25 June 1957, Combat stn 

 428. Id 19, USNM, off Hilton Head Island, 40-46 

 m, 7 October 1957, Combat stn 514. 39, USNM, 

 off Hilton Head Island, 64 m, 14 December 1961, 

 Silver Bay stn 3657. Georgia: 3d, USNM, off 

 Cape Romain, 1941, J. Oney 19, USNM, off 

 Sapelo Island, 42 m, January 1940, Pelican. 49, 

 USNM, NE of Savannah Beach, 40 m, 4 February 

 1940, Pelican . 6d 99 , USNM, off Jekyll Island, 73 

 m, 15 March 1940, Pelican. Florida: Id 29, 

 USNM, NE of Fernandina, 31 m, 2 October 1951, 

 Combat stn 505. Id 29, USNM, off Fernandina, 

 42 m, 10 March 1976, George M. Bowers stn 

 37. 3d 39, USNM, off Ponte Vedra Beach, 24 m, 

 23 April 1956, Pelican stn 32. 4d 19, USNM, off 

 St. Augustine, 329 m, 16 September 1956, Combat 

 stn 119. Id , USNM, off Matanzas Inlet, 183 m, 18 

 November 1965, Oregon stn 5741. 13d 229, 



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