OXYSTOMATOUS AND ALLIED CRABS OF AMERICA IQ 



and fragments of others were secured from fish stomachs. It has 

 not been met within the harbor nor along the beaches." (Hay.) 



Measurements. — Carapace (9632), length 39.4, width of middle 28.3, 

 ■^-idth at outer spines 26.7 mm. The largest specimen, female (5231), 

 from a fish stomach, measures about 41 mm long. 



Range. — North Carolina to Gidf of Mexico and Caribbean Sea; 

 to 56 fathoms. 



Material examined. — See table 3, page 14. 



BANILIA ANGUSTATA Stimpson 



FiGUKE 9; Plate 3, Figures 1, 2 



Ranilia angustata Stimpson, Ann. Lye. Nat. Hist. New York, voL 7, p. 240 [112], 

 1860 (t3^pe locality, Cape St. Lucas; type not extant). 



Description. — "Very closely allied to B. muricata, but with the 

 carapax conspicuously narrower, smoother, and more glabrous." 



a 



Figure 9.— Ranilia angustnta, male: a, Anterior portion of carapace; 6, distal half of right cheliped, 



upper surface. X 3. 



Color. — "Carapax pale red in alcoholic specimens, closely maculated 

 with white, the spots being generally about one-fifteenth of an inch 

 in diameter, but sometimes larger, and so much crowded, that the 

 carapax appears white, reticulated with red." 



Measurements. — "Length of carapax in a male, 0.93; breadth, 0.66 

 inch" [23.6 mm long, 16.8 mm broad]. (Stimpson.) 



The margins of the middle half of the carapace are nearly parallel 

 and are straighter than in muricata. Spines of carapace slenderer 

 in angustata; rostral spine longer relatively than in muricata, extending 

 noticeably beyond the adjacent pair of spines. Of the four antero- 

 lateral spines in angustata, the distance between third and fourth is 

 less than between third and first, while in muricata the reverse is true. 

 The short granulated lines which cover the greater part of carapace in 

 muricata are present in angustata only on the anterior, arcuate portion 

 of carapace; the rest of the surface is smooth and covered with 

 separated punctae. The spine on upper margin of palm is less erect 

 and more curved in angustata. 



Range. — West coast of Mexico. 



Material examined. — Tiburon Island, south end; 10 fathoms; 

 January 1, 1932; S. A. Glassell; 1 female. La Paz, Gulf of California; 

 1882; L. Belding; 1 female (5232). 



