115 



as Awmijx loiKjicornis and as Lepidepecreimi carninutum, the former being tlie 

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

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

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

 The form recently described by Prof. Meinert as Lepidepecreum mirabile I 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 overlociked 

 wlien tiie 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. 



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

 ranean (found by the author at Spezia). 



52. Lepidepecreum umbo, (does). 



(PI. 39, lig. 2.) 

 Lysianassa umbo, Goes, Crust, amphip. maris Spetsbergia?, p. 4, fig. 6. 



Body very rolnist 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 nietasome and 1st 

 of urosome jutting out dorsally as an acute somewhat upturned projecticni 

 Cephalon ahout 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 heing nearly 3 times as deep as the body ; 4th pair 

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

 an oljtuse linguiform 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 

 nniboniform eminence; Gth pair- also rather deep and obliquely truncated at 

 tlie infero-posterior corners. Last pair of epimeral plates of nietasome 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; flagelhrm in female shorter 

 than the peduncle and composed of S articulations, the 1st of which e(iuals 

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

 extremely small, and triarticulate. Inferior antennae in female nearly 

 as long as the sujierior, but much more slender, Hagellum 8-articulate. An- 



