ii2 Addison E. Verrill, 



and stouter, and the claws are stronger. The third maxilliped 

 (pi. 36, fig. 30) has its last article notably shorter than in 5\ minus. 



The telson is shaped much as in 5". minus, but it is relatively 

 smaller and rather more narrow ; width of its distal end to length 

 as i : 2.05 to 2.24. 



Our largest example (1828) referable to this species is a 

 female with large eggs, from the Bahamas. The body is very 

 stout and thick, thorax swollen. Front tridentate, the rostrum and 

 orbital spines close together at their bases ; triangular and sub- 

 equal. 



Antennular spine strong, reaching to the distal third of the 

 second segment. Basal antennal spine (basicerite) is not so long, 

 more slender, reaching to the end of the first segment; a small 

 dentiform lateral spine is situated above its base. Antennal scale 

 or scaphocerite is as long as the peduncle, or carpocerite : its spine 

 is about equal to the antennular peduncle. 



Telson is rather broad, convex on the margins, little tapered, 

 obtuse, with four small dorsal spines and a pair of small terminal 

 ones nearly in the same lines, at each distal angle. It is accom- 

 panied by two males that are slender and not half as large. 



These specimens were labelled as minus by Kingsley. 



A similar female specimen from St. Thomas (No. 1832, C. F. 

 Hartt, coll.) also has a very stout body. Front has three nearly 

 equal, short, narrow, acute spines not much longer than broad, the 

 rostrum only a little narrower than the others. The antennular 

 spine reaches to about the middle of the second segment. Basi- 

 cerite is not very long, slender and acute ; secondary spine lacking 

 or rudimentary. Antennal scale is narrow, shorter than its spine, 

 which reaches about to the end of the antennal stalk. The large 

 chela is lacking. The smaller one is simple and nearly smooth. 

 Ambulatory legs are rather stout. Third maxillipeds are stout and 

 very hairy. Telson is regularly tapered. 



Brooks and Herrick, 1891, apparently had at least two species 

 confounded under the name of "var. brevlcarpus." On page 381 

 they gave a special diagnosis of this form and designated its type. 

 They there gave a detailed description of it and its variations. 

 Thus there need be no doubt as to the application of the name. 

 The earlier provisional name, pracox, without a description, is 

 there given as synonymous. In the comparative tables, pp. 385-7, 

 and table of measurements (pp. 386,- 387) they gave additional 



