PEREZ FARFANTE: KEY TO AMERICAN PACIFIC SIIRIXU'S, GENUS Traihypmarm 



Trachypenaeus jusciua SPECIES NOVA 



FIGURES 1, 2, 3A, 4A-F, 5A, 6 

 •PINTO," "CEBRA," "TIGRE," 



Tmchypeneiis faoe Lindner, 1957 [part], women 

 nudum: 48, 49, 81, 145.— Crocker, 1967 [part] : 

 8, 57. 



MATERIAL 



Holotype.— 5, USNM 135403, off Cocodrilo, 

 Chiapas, Mexico, 22 m, October 31, 19G9, H. Ro- 

 mero and G. Gomez, 35.25 mm carapace length, 

 135 mm total length, ratio length of spine/width 

 of terminal portion of telson = 0.55. 



Allotype.— d, USNM 135404, off La Tapada. 

 Chiapas, Mexico, 22 m, July 31, 1970, D. Palacios, 

 26 mm carapace length, 108 mm total length, 

 ratio length of spine'width of terminal portion 

 of telson = 0.80. 



Paratypes.— Mexico. Oa.xaca. 8 $, IBUNM- 

 USNM,"Salina Cruz, May, 1961, E. Martin F. 

 1 S, INIBP, Santa Maria Xadani, Laguna Su- 

 perior, July 23, 1970, L Perez Farfante. 1 2, 

 USNM, off Las Chiches, 24 m, August 6, 1966, 



Z. Ortiz and G. Gomez. 2 3 1V, USNM, Golfo 

 de Tehuantepec, July 14, 1963, I. Mayes. Chia- 

 pas. 32, USNM, off Barra de San Marcos, 27 m, 

 March 18, 1964, A. Guerra. 3 2 , INIBP-USNM, 

 off mouth of Rio Suchiate, 7-13 m, February 12, 

 1968, Romero, Ortiz, Sanchez, and Arias. 1 9, 

 USNM, off La Tapada, 7-9 m, February 5, 1968, 

 Romero, Ortiz, Sanchez, and Arias. 4 3 5 2, 

 INIBP-USNM, off La Tapfida, 22 m, July 31, 

 1970, D. Palacios. 5 2, INIBP-USNM, off Co- 

 codrilo, 22 m, October 31, 1969, H. Romero, and 

 G. Gomez. Ecuador. 1 2, USNM, off Playas, 

 September 2, 1962, fishermen. Perii. 2 2, 

 USNM, Caleta La Cruz, Tumbes, 70 m, E. M. 

 del Solar. 



DESCRIPTION 



Carapace pubescent (Figure 2) ; dorsum den- 

 sely covered by setae; paired bands of longer 

 setae flanking postrostral carina, from rostrum 

 to various levels in posterior third of carapace; 

 another band on dorsal side of antennal carina; 

 longer setae also along cervical, hepatic and 

 branchiocardiac sulci, and others forming patch- 

 es on orbital region and posteroventral portion 



Figure 2. — Trachypenaeus fuscina sp. n. Lateral view, 9 33 mm carapace length, off Cocodrilo, Chiapas, Mexico. 



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