188 BULLETIN 97, UNITED STATES NATIONAL MUSEUM. 



in the third leg, projecting forward in the other two; upper surface 

 rough with denticles which tend to form longitudinal rows making 

 two elevated regions separated from each other and from the margins 

 by depressions; tw r o lamellate lobes on anterior border of carpus, 

 especially of second and third pairs. Last leg scarcely surpassing 

 merus of preceding leg. 



Measurements (after Bouvier). Male holotype, greatest length 

 of carapace 9, width 10.5, length of left cheliped 10.5, first ambu- 

 latory 11.5, second 18.5, third 16 mm. 



Material examined. Off Grenada, Windward Islands; lat. 11 

 25' 00" N.; long. 62 04' 15" W.; 96 (not 92) fathoms; Co. brk. Sh.; 

 temp. 58.5 F.; Feb. 27, 1879; station 253, U. S. C. S. Str. Blake; 

 one male holotype (Cat. No. 6494, M. C. Z.). 



CYMOPOLIA ALTERNATA (Rathbun). 



Plates 42 and 43. 



Palicus alternatus RATHBUN, Proc. Biol. Soc. Washington, vol. 11, 1897, 

 p. 95 (type-locality, lat 29 11' 30" N. ; long. 85 29' 00" W., 26 

 fathoms; holotype, Cat. No. 19840, U. S. N. M.) ; Bull. U. S. Fish 

 Comm., vol. 20, for 1900, pt. 2 (1901), p. 12 (part). 



Palicus Blakei A. MILNE EDWABDS and BOUVIER, Bull. Mus. Hist. Nat. Paris, 

 vol. 5, 1889, p. 123 (type-locality, Gulf of Mexico) ; Mem. Mus. Comp. 

 Zool., vol. 27, 1902, p. 48, pi. 8, figs. 13-16 (type-locality, lat. 24 43' 

 N. ; long. 83 86' W., 37 fathoms ; holotype at present in Paris Mus.). 



Diagnosis. Two blunt lateral teeth. Sides of carapace conver- 

 gent anteriorly. Propodus of legs two and three slightly widening 

 distally; anterior distal lobe of merus subrectangular. Posterior 

 margin of propodus and proximal half of dactylus of leg one clothed 

 with shaggy hair in adult male. 



Description of typical specimens. Elevations of carapace covered 

 with small tubercles composed of a few granules and with single 



granules. Four frontal lobes well 

 defined; median sinus an equi- 

 lateral triangle, lateral sinuses 

 small but well marked, lateral 

 teeth much less advanced than 

 FIG. ii7. CYMOPOLIA ALTERNATA, OUT- median teeth and broadly round- 



xT P MALE ed - Middle tooth of supraorbital 



margin broad, obliquely subtrun- 



cate, blunt, bounded on each side by a V-fissure very narrow toward 

 the point ; next tooth separated from the outer tooth of the orbit by a 

 shallow sinus. Outer orbital tooth directed forward or a little out- 

 ward, tip turned inward, outer margin mostly straight, sometimes a 

 little concave. Next two antero-lateral teeth dentiform, with rounded 

 tip, little projecting, second the smaller, sinuses small, V-form, after 



