Boone, Crustacea, Cruise of "Alva," 1931 109 



is weak, 0.9 mm. long; the dactyl is stylet-like, 0.7 mm. long; the 

 distal three articles have curiously the aspect of a typical maxil- 

 lary palp and are quite setose along the inner lateral margin and a 

 tuft of these setae tip the apex of the dactyl. 



The second pair of ambulatories has the basis stout, nearly 

 two-thirds as wide as long; the basis is 0.5 mm. long, with the 

 basecphysis about 0.75 mm. long; the ischium is no longer but is 

 as wide, bent, more compressed and bearing on the median portion 

 of the anterior lateral border an oblique, laminate, somewhat den- 

 tate process, which is nearly as long as the ischium and extends 

 obliquely outward; the merus is laminate, length 1.1 mm., median 

 width 0.5 mm. ; the anterior lateral margin slightly serrulate on 

 the proximal portion and terminating distally in a distinct angu- 

 lation or tooth ; the carpus is elongate, slenderer than the merus, 

 compressed clavate, 1 mm. long; the propodite is 0.6 mm. long, 

 slender; the dactyl is 1 mm. long., tapered, acuminate. The in- 

 ferior lateral margin of the meral, carpal, propodal and both lat- 

 eral margins of the dactyl are setose ; the dactyl is also "cuffed" 

 proximally with long bristles. The basecphysis is present, about 

 one and one-half times the length of the supporting joint, but is 

 distinctly shorter than that of the first pair of ambulatories. 



The third pair of ambulatories are similar in shape to the sec- 

 ond pair, but weaker, shorter, and differ in that the basis joint 

 has a strong antrorse spine and there is no basecphysis present 

 on the third pair of ambulatories. The third pair of legs have the 

 three proximal joints definitely arched, in a manner strongly 

 resembling the arched fifth pair of legs of a typical hermit crab. 



Family: RHYNCHOCINETIDAE 



Genus: RHYNCHOCINETES H. M. Edwards 



Rhynchocinetes hendersoni Kemp 



Plates 28 and 29 



Type : Dr. Kemp's type series came from Pamban and Kila- 

 karai, Gulf of Manaar, and is deposited in the Calcutta Museum. 



Distribution: In addition to the type localities. Dr. Kemp 

 has reported this species from Tuticorin and the Fiji Islands. The 

 "Alva" specimen from Bali adds another locality for it. 



Material examined: An ovigerous female, taken in coral, 

 Temukus Roads, Bali, Dutch East Indies, October 25, 1931. 



