115 



as Anonyx longicornis and as Lepidepecreum cantinafitni, the former being the 

 adult male, the latter the female. I think the first named specific appellation 

 must be cancelled as only referring to a masculine character, although it is 

 of somewhat older date than the name subsequently assigned to the female. 

 The form recently described by Prof. Meinert as Lepidepecreum ini^ihilr \ am 

 unable to distinguish from the present species. The lateral carina, it is true. 

 has not been observed by Sp. Bate; but this carina may easily be overlooked 

 when the animal is only viewed from a lateral standpoint. 



Occurrence. - - Off the coast of Norway this species would seem to be 

 confined to the most southern part. I have found it rather sparingly at 

 Lushavn, situated at the eastern corner of Lister, and at Mserdo, outside Aren- 

 dal, at depths varying from 10 to 30 fathoms, in sandy bottom. 



Distribution. British Isles (Sp. Bate), Denmark (Meinert); Mediter- 

 ranean (found by the author at Spezia). 



52. Lepidepecreum umbo, (Goes). 



(PI. 39, fig. 2.) 

 Lysianassa iiinbo, Goes, Crust, amphip. rnaris Spetsbergise, p. 4, fig. 6. 



Body very robust and compact in both sexes, with the back consi- 

 derably curved; dorsal carina increasing in height posteriorly, the segments 

 being partly produced dorsally at the end ; last segment of metasome and 1st 

 of urosome jutting out dorsally as an acute somewhat upturned projection 

 Cephalon about the length of the 1st segment of mesosome, lateral corners 

 considerably produced and acute at the tip. Coxal plates very large and 

 deep, the 4 anterior ones being nearly 3 times as deep as the body ; 4th pair 

 rather narrow in their upper part, but considerably expanded below, forming 

 an obtuse lingniform lobe beneath the rather deep emargination ; 5th pair 

 unusually large, oval, much more deep than broad, with the infero-posterior 

 corners produced downwards, and exhibiting in the centre a most conspicuous 

 umboniform eminence; 6th pair also rather deep and obliquely truncated at 

 the infero-posterior corners. Last pair of epimeral plates of metasome nearly 

 rectangular, very slightly produced at the lateral corners. Eyes narrow 

 oblong, pigment red. Superior antennae about twice the length of the cepha- 

 lon; 1st joint of the peduncle produced at the end in a similar manner as in 

 the preceding species, the other 2 not produced; flagellum in female shorter 

 than the peduncle and composed of 8 articulations, the 1st of which equals 

 in length the 4 succeeding ones combined; accessory appendage distinct, but 

 extremely small, and triarticulate. Inferior antennae in female nearly 

 as long as the superior, but much more slender, flagellum 8 articulate. An- 



