STALK-EYED CRUSTACEA 247 



the walking legs armed with four rows of spines. Hairs 

 on legs short and in tufts. 



The abdomen of the male is broadest at the third 

 segment, narrowing to the sixth, which is longer than 

 broad. The last segment is narrow, with a rounded end. 

 The first pair of abdominal appendages reach to the 

 middle of the sixth segment, are triquetal, straight, and 

 stout ; their tips are rounded and slightly flattened laterally, 

 and each has a very small, scale-like appendage directed 

 obliquely outward, and on the upper edge, just beyond 

 this appendage, there is a small, straight process, which 

 does not reach beyond the rounded extremity of the 

 thickened portion. These appendages spring from a 

 bony arch under which the intestine passes. 



Range. — West Indies, Barbados, Jamaica, Cuba, 

 Hayti, Bermuda, Florida, Mexico, British Guiana ; Berbice, 

 Brazil, Cape Verde Islands. 



4. Cardiosoma cressum. 



Cardiosovm crcssuni .... Smith. 

 Cardiosoma latimanns . ■. . Lockington. 

 Cardiosoma barbatus (?) . . . H. Milne Edwards, 



Poeppeg. 



The regions on the carapace are not well marked. 

 The front is broad and high, and the epigastric lobes 

 are prominent, leaving between them and the front a 

 depressed space, which is thickly covered with coarse 

 granules. The lateral angle of the orbit projects for- 

 ward as an angular tooth. Just behind this tooth the 

 antero-lateral margin is broken by a sharp notch, above 

 which the carina of the lateral margin begins in a 

 sharp prominence. This carina through its length is 



