PEREZ KARFANTE: AMERICAN SOLKNOCKRID SHRIMPS 



is found both on the shelves, at a minimum depth 

 of 30 m, and on the slopes to about 500 m. 



Material 



Abbreviations of the repositories of the speci- 

 mens examined during this study follow: 



AMNH American Museum of Natural His- 



tory, New York, N.Y. 



BMNH British Museum (Natural History), 



London. 



IOUSP Instituto Oceanografico, Universi- 



dad de Sao Paulo, Sao Paulo. 



MCIP Ministerio de Comercio e Industrias, 



Panama. 



MCZ Museum of Comparative Zoology, 



Harvard University, Cambridge, 

 Mass. 



MP Museum National d'Histoire Natu- 



relle, Paris. 



RMNH Rijksmuseum van Natuurlijke His- 



toire, Leiden, Netherlands. 



TAMU Texas A&M University, College Sta- 



tion, Tex. 



UMML Rosenstiel School of Marine and At- 



mospheric Sciences, University of 

 Miami, Fla. 



UNC-IMS University of North Carolina - Insti- 

 tute of Marine Sciences, Morehead 

 City, N.C. 



USNM National Museum of Natural His- 



tory, Smithsonian Institution, 

 Washington, D.C. 



YPM Peabody Museum of Natural His- 



tory, Yale University, New 

 Haven, Conn. 



Presentation of Data 



The measurement of carapace length (cl) is the 

 linear distance between the orbital margin and 

 the midposterior margin of the carapace, and that 

 of total length (tl) is the distance between the 

 apex of the rostrum and the posterior end of the 

 telson. The scales accompanying the illustrations 

 are in millimeters. Figures 1 and 2 depict many 

 characters used in the descriptions. For the ter- 

 minology employed in the accounts of the sperma- 

 tophores, see Perez Farfante (1975). 



Key to Genera of Solenoceridae 



1. Telson with pairs of movable lateral 



spines anterior to fixed pair; podo- 

 branchia on at least second and third 



maxillipeds Haliporus 



Telson with single pair of fixed lateral 

 spines only; podobranchia restricted to 

 second maxilliped 2 



2. Dorsal and ventral antennular flagella 



lamellate; lateral ramus of uropod lack- 

 ing distolateral spine Solenocera 



Dorsal antennular fiagellum subcylin- 

 drical, ventral subcylindrical or flat- 

 tened; lateral ramus of uropod armed 

 with distolateral spine 3 



tubercle 



postrostral carina 



epigastric tooth 



rostral teeth. 



adrostral carina 



orbital spine 

 postorbltal spine 



orbito-antennal sulcus- ^>antennal spine 



hepatic spine 



-^branchiostegal spine 



pterygostomian spine 



submargmal carina 

 FIGURE 1. — Diagrammatic lateral view of cephalothorax showing terms used in descriptions of solenocerid shrimps. 



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