210 Bulletin Vanderbilt Marine Mitseum, Vol. VI 



Material examined : Two immature specimens from off the 

 New Hebrides, depth 250 fathoms, October, 1931. 



Technical description : Carapace slender, rostrum produced 

 almost as far as the distal margin of the cornea, slender, straight, 

 narrowly lanceolate. Carapace short, compact, with a well de- 

 fined tooth on the lateral margin, situated posterior to the center. 

 Abdominal terga smooth, epimera somewhat angular; the sixth 

 segment is one and one-half times longer than the fifth. There 

 is a strong, curved, preanal spine present, forming a broad plate 

 with the hinder margin serrate. The telson is slender, terminating 

 in a distal stylus and armed on either side by a long spine. The 

 uropoda are slightly longer than the telson ; the inner blade is very 

 narrowly lanceolate ; the outer blade is a little longer and wider, 

 with a distal tooth. 



The eyes are characteristically large, unequally globose, the 

 cornea set on a short stalk and being unequally divided by a trans- 

 verse constriction across the cornea, a little above the center, the 

 upper lobe being the smaller. 



The antennulae have the basal article laminate, with the dis- 

 tal border somewhat projecting and densely setose, the outer 

 distal angle with a tooth; the second and third articles are as 

 long as the first and are cylindrical, the third article being a little 

 longer than the second; the flagellum is two-branched, both 

 branches being short, each about one-half as long as the peduncle. 



The antennae support a long, narrow scaphocerite, which ex- 

 tends almost as far as the third peduncular article of the anten- 

 nulae and is tapered toward the obliquely rounded apex, the outer 

 distal angle being acuminate. The basal spine is small, smooth. 

 The flagellum is slender. 



The first pair of legs is decidedly the longest of the entire 

 series, being one and one-half times as long as the body ; the meral 

 and carpal joints are the longest of the series, the merus being the 

 longest, very slender, tapered distally and very flexibly joined 

 with the carpus, which is also very slender, linear, with six or 

 eight spiniform, multiplumose setae; the dactyl is quite small, 

 armed with five strong, curved spines. 



The second to fifth pairs of legs, inclusive, are successively 

 shorter ; the second and third pairs having the carpus and pro- 

 podus subequal, and the dactyl very short, conical ; the fourth pair 

 of legs is very small, with the endopod consisting of only two 



