265 



rk*. The above-described form agrees on the whole so closely with 

 the species recorded by Th. Scott, that I cannot doubt that it is the same. Yet 

 there is one apparent difference to be noted as regards the structure of the 1st 

 pair of legs, the outer ramus of which is said by that author to be 3-articulate; 

 but I think this statement must be due to some mistake. The present form is 

 a very distinct one, easily recognisable from any of the other known species. 



Occurrence. Only 2 female specimens of this form have hitherto come 

 under my notice. They were taken at Farsund, south coast of Norway, from a 

 depth of about 30 fathoms. 



Distribution. Scottish coast (Scott). 



Gen. 53. LaOphOntOpSiS, G. O. Sars, n. 



Generic Characters. Body slender, cylindric in form, with deep instrictions 

 between the segments. Integuments unusually hard, and exhibiting a pitted sculp- 

 turing. Rostral projection broad, lamellar, and distinctly defined at the base by 

 a transverse suture. Caudal rami pronouncedly lamellar, with the apical setae 

 very short and rudimentary. Anterior antennae short and stout with the articu- 

 lations much reduced in number. Posterior antennae and oral parts differing only 

 slightly in structure from those in Laophonte. 1st pair of legs likewise of a very 

 similar appearance, though differing in the presence of a plumose seta inside the 

 proximal joint of the inner ramus. Natatory legs well developed, with the outer 

 ramus very slender and provided inside with long ciliated setse, inner ramus bi- 

 articulate, with the number of setae somewhat reduced. Last pair of legs in 

 female with both the distal joint and the inner expansion of the proximal joint 

 narrowly produced. 



Remarks. The present new genus is founded upon the anomalous species 

 Laophonte lamellifera of Glaus, which seems to me to be entitled to form a dis- 

 tinct generic type, exhibiting, as it does, some rather striking differences from the 

 other species of Laophonte. The most conspicuous of these differences is shown 

 in the peculiar structure of the caudal rami, from which the name of the species 

 has been derived. There are however 2 other less conspicuous characters by 

 which the present genus differs very markedly from most other Laopliontidce, and 

 which are only found in one other very distinct genus referable to that family, 

 viz., the genus Normanella Brady, to be described farther on. The first of those 



35 Crustacea. 



