's RIJKS MUSEUM VAN NATUURLIJKE HISTORIE — LEIDEN. 461 



slender, 4,5-times as long as thick, measuring two-fifths the length of 

 the merus; propodus not yet half as long as merus. [In Nobili's figure 

 of this leg the merus appears only 5-times as long as broad and but 

 little longer than the propodus, the carpus 2 1 / 3 -times as long as thick 

 distally and more than half as long as the merus. This leg was not figured 

 by Paulson]. For the rest probably like Nikoicles Danae Paulson. 

 Largest specimen 25,2 mm. long, probably not yet full-grown. 



Family Crangonidae. 

 Pontophilus Leach. 



Pontophilus occidentalis Fax,, var. indica n. 



Pontophilus occidentalism W. Faxon, in : Memoirs Museum Comp. Zoology, 

 Yol. XVIII, Cambridge 1895, p. 131, PL D, figs. 2— 2d. 



Stat. 45. 7°24'S., 118°15'.2E. Flores Sea. 794 m. Bottom fine grey 

 mud, with some radiolariae and diatomes. 1 young and 2 adult, ova- 

 bearing females. 



Stat. 88. 0°34'.6K, 119°8'.5E. Northern part of the Strait of Ma- 

 kassar. 1301 m. Bottom fine grey mud. 2 females. 



Stat. 178. 2°40'S., 128° 37' 5 E. Ceram Sea. 835 m. Bottom blue mud. 

 1 young female. 



Stat. ,211. 5°40'.7S., 120°45'.5E. East of Saleyer Island. 1158 m. 

 Bottom coarse grey mud, superficial layer more liquid and brown. 1 

 young female. 



Stat. 300. 10°48'.6S., 123°23'.1E. South of Rotti island. 918 m. 

 Bottom fine grey mud. 1 male. 



Stat. 316. 7°19'.4S., 116°49'.5E. Bali Sea. 538 m. Bottom fine, dark 

 brown sandy mud. 2 young and 4 adult, ova-bearing females. 



Closely related to Pont, occidentalis Fax. from the West coast and to 

 Pont, gracilis Smith from the East coast of America. 



The typical Pont, occidentalis differs by its much larger size, by the abdo- 

 men being 2V 2 -times as long as the carapace, rostrum included, in the variety 

 indica 3-times, and by the anterior of the two gastric spines, on the 

 mid-dorsal line of the carapace, being as large as the posterior, whereas 

 in the variety indica the anterior spine is considerably smaller, hardly 

 perceptible by means of an ordinary magnifying glass. Rostrum more or 

 less obliquely turned upward, as long as the eyes or a little shorter, 

 armed with 2, rarely 3, pairs of marginal spines (in Pont, gracilis Smith 

 only one pair): the shape of the rostrum is somewhat variable, the 



