44 BULLETIN 120, UNITED STATES NATIONAL MUSEUM 



PODOCHELA MACRODERA Stimpson 



Plate 16 



Podochela macrodera Stimpson, Ann. Lye. Nat. Hist. New York, vol. 7 

 1860, p. 196 (type-localities, St. Thomas and Key Biscayne, Florida- 

 types not extant). — A. Milne Edwards, Crust. R6g. Mex., 1879, p. 191 

 pi. 34, figs. 3-3c.— Rathbun, Proc. U. S. Nat. Mus., vol. 17, 1894, p. 50; 

 Bull. U. S. Fish Comm. for 1900, vol. 20, pt. 2 (1901), p. 53; in Boeke', 

 Rapport Vischerij Kolonie Curagao, 1920, p. 343 [27]. 



Diagnosis. — Rostrum short, thick, subtriangular. Fingers of 

 adult male widely gaping. Distal ends of propodites of ambulatory 

 legs curved. 



Description. — Cardiac region depressed, bearing a low tubercle; 

 two median gastric tubercles; hepatic region swollen, its tubercles 

 very small; a small tubercle on the pterygostomian region. Rostrum 

 small, short, thick, subtriangular, ob- 

 tuse or subacute, flat above, sides 

 steeply inclined. Sternum of male with 

 smooth convex segments separated by 

 shallow grooves. In front of the ab- 

 domen are two white-tipped tubercles. 

 First abdominal segment in male and 

 first and second in female with a white '".';:,„"SS,T.""„r x "i" 

 median tubercle. 



Basal antennal article long, much narrower anteriorly, lateral 

 margins thick and convex, uniting on the anterior third. Chelipeds 

 of adult male stout, manus much dilated, fingers widely gaping. 

 Ambulatory legs of first pair about two-and-a-half times, of second 

 pair about one and two-thirds times, of fourth pair about one and a 

 third times the length of the carapace; first pair similar to that of 

 riisei. Propodites of last three pairs falcate, the distal portion 

 being curved, and the tip of the curved dactylus fitting against a 

 thumb process; second propodus about two and a fourth times its 

 dactylus, third propodus a little over twice, and fourth propodus 

 less than twice its dactylus. 



Measurements. — Male (6368), length of carapace 15.3, width 

 11.2 mm. Female (18670), length 10.8, width 8.6 mm. 



Range. — Bahamas; Florida Keys from Key Biscayne (A. Milne 

 Edwards) to Sand Key; Yucatan Channel; West Indies from Cuba 

 and Porto Rico to Guadeloupe (A. M. E.). Curasao. Shallow water 

 to 14^ fathoms; 50 fathoms (unusual). 



Material examined. — See table, pages 46-47. 



