no.1653. SOME \i:\\ ITLANTH T80POD8 RICHARDSON. | - ;, 



First pair of legs in male transformed into a sorl of operculum, 

 arching over the ventral side of the head and concealing the mouth 

 parts; they are composed of five articles, the third being the largi 

 The terminal or fifth article is nearly twice as long as the fourth. 

 The other five pairs of legs are ambulatory. There are no append 

 ages to the seventh thoracic segment. 



This species is very similar to the type species described by Bed 

 dard, but differs in the structure of the mandibles, in the additional 

 article to the fiagellum of the second antenna?, in the longer terminal 

 joint of the first gnathopods, in the differently shaped rostrum, in 

 the absence of the bunch of hairs at the tip of the rostrum, and in 



having the mandibles fitting closely a nun id the rostr not project 



ing straight forward at a distance from the rostrum. 



Two fine specimens, !»<>tli males, are from the following localities: 

 One (type) from Albatross Station •_'">I7. south of Marthas Vine 

 yard, was taken at a depth <»f •"■'•"i fathoms; another from AlbaU 

 Station 2528, east of George's Bank, was taken at a depth of 677 

 fathoms. 



Type. Cat. No. 38972, C.S.N.M. 



Beddard's species was taken at a depth of '.""i fathoms. I'll'' divi- 

 sion proposed by Dollfus," in winch genera provided with eye- are 

 littoral or do not extend below a depth of 500 fathoms and those de 



prived of eyes live at a depth of 1,000 fathoms can not he maintained. 



for we have now a species belonging to a genus without eye- found 



at a depth id' only :'>'.><> fat hoius. 



Genus GNA.THIA Leach, 1814. 



GNATHIA MULTISPINIS, new species. 



Body ovate; lateral margins drawn out in -mall spines; dorsal 

 surface covered with small spine- and tubercles. Legs also covered 

 with small spines. 



Head broader than long, about twice a- wide a- lone-: frontal 

 margin not produced in a rostrum, hut in a -mall median point: 

 antero-Iateral angles produced in a bifurcated spine; lateral margins 

 drawn out on either side in -pine-: dorsal surface covered with 

 small -pine- and tubercles. Eyes moderately large, composite, and 

 placed on the lateral margins. First pair of antennae with the first 

 two article- of the peduncle short and subequal; third a- long as 

 first two taken together; fiagellum composed of four article-, the 

 first very short. Second antennae with the first two articles of the 

 peduncle short; last two elongated and subequal; fiagellum broken 

 at the fourth article. Mandibles projecting a considerable distance 

 in front of the head: broad at base and produced to narrow, acme 

 extremities; <»n the outer margin, on the posterior half furnished 



"Bull. So,-. X....I. France, XXVI, 1901, pp. 239 240. 



