532 PROCEEDINGS OF TEE NATIONAL MUSEUM. vol.50. 



of carapace in male to three times in female ; a double comb of long 

 spines on inner margin of propodus and dactylus and of shorter 

 spines on merus; outer margin and upper surface also spinous, 

 lower surface partially spinulous. Second leg -vyitli upper surface 

 as well as margins spinous throughout its length; at distal end of 

 outer margin there is a loose brush of fine, curved hairs; dactylus 

 with a thin fringe of short hair on its outer margin, the hair becom- 

 ing longer and thicker near the tip. In the third and fourth legs 

 the merus and carpus are similarly armed, but the propodus has 

 only marginal spines and the dactylus a few distant spines on the 

 proximal half of the outer margin of the dactylus ; the propodus has 

 two rows of long hair, one on the inner margin, the other near the 

 outer margin and turned inward, exceeding the width of the seg- 

 ment; similar fringes are on the proximal half of the dactylus, but 

 on the distal end of the outer margin there is a short row of out- 

 standing hairs. 



The abdomen in both sexes has a stout, conical spine on the first 

 segment, while the other segments bear each a few spinules, and, in 

 the sixth and seventh segments of the female, several spines. That 

 l^art of the sternum which forms the anterior margin of the egg 

 cavity is armed with a few sharp spines. 



Differs from other species in having the carapace covered with 

 spines and spinules in all ages instead of with granules or a few 

 spines; in the elongated rostrum; in the ambulatory legs armed 

 with spines and spinules on the upper surface; in the slenderness of 

 the second, third, and fourth legs, and especially of their dactyli; 

 in the brush of curled hair at end of outer margin of propodus of 

 second leg ; and in the brush of straight hair at end of outer margin 

 of dactyli of last three legs. 



CYRTOMAIA HORRIDA, new species. 



Type-local (ti/. — Between Negros and Siquijor: Apo Island (C), 

 S. 64° W., 7.3 miles; lat. 9° 08' 15" N.; long. 123° 23' 20" E.; 256 

 fathoms; gn. M. S. ; temperature 53.3° F. ; Aug. 19, 1909; station 

 5538, Alhatross. 



Holotf/pe.— Large male. Cat. No. 47321, U.S.N.M. 



Measurements. — Length of carapace, 59; length of carapace to 

 rostral sinus, 48.2; width of carapace, 53; length of lateral gastric 

 spine, 20.2. 



Belongs to the group having a spine on upper margin of orbit. 

 Carapace very rough with sharp granules and covered with short 

 hair. The lateral gastric spines are by far the largest spines of the 

 carapace; the outer spine of the orbit is next in size, and the bran- 

 chial spine, the median gastric spine, and the upper orbital spine 

 are next. Still smaller are the two cardiac spines, while there is 



