Revision of the Genus Lomanotus. 209 



line of the animal. A full rendering of the Italian description 

 is here given : — 



Body elongate wedge-shaped, the back somewhat convex. 

 Branchiae adhering anteriorly to two annulated caliciform 

 sheaths with a four-toothed aperture, the sheaths including 

 the two dorsal tentacles, which are club-shaped and furnished 

 with small, parallel, oblique laminae. Foot narrow, with an 

 anterior marginal groove. Aperture of the genital organs on 

 the right side and far forward, anus on the same side and 

 placed far backward. Colour intense wine-red, dotted with 

 white, variable by reason of its transparency, which allows 

 the internal parts of a darker red to show through. Length 

 60'". Fished up rarely from a depth of 200-250 metres, in 

 consequence of which the animal is only obtained dead [or? 

 and?] more or less imperfect, as it is very soft (" onde non si 

 ottiene se non morto piu o meno imperfetto, perche e molto 

 floscio "). 



In this same year (1846) Alder and Hancock describe, in 

 the Ann. & Mag. Nat. Hist, for November (vol. xviii. p. 293), 

 a second species of their genus Eumenis (afterwards acknow- 

 ledged by them to be equivalent to Lomanotus) from a single 

 specimen \ inch long taken in from 3 to 4 fathoms in 

 Lamlash Bay. This species they name E. flavida. The 

 colour of the body is yellow, with brown spots, the sheath- 

 margins are tubercled, and the pleuropodium is indistinct, its 

 place being marked, or, rather, suggested, by a line of small 

 papilla? along each side of the body, marked off at intervals 

 by isolated larger papillae. In the sixth part of the Mono- 

 graph, which appeared in 1854, this species is figured and 

 named Lomanotus flavidus. 



I860. — William Thompson describes, in the Ann. & Mag. 

 Nat. Hist. (ser. 3, vol. v. p. 50), a third British species of 

 Lomanotus, making, with Verany's L.genei, the fourth species 

 of the genus so far detected. The description of this new 

 species, which he names L. portlandicus, is founded on two 

 specimens each If inch long dredged at Weymouth, one in 

 1855, the other in 1856. In colour this species differs from 

 the three previously described, the body being pellucid white, 

 tinged with brownish yellow on the back and pale orange-red 

 in front; the sheath-margins are divided into six finely 

 pointed filaments, and the pleuropodium commencing in front 

 of the sheath-bases continues " behind the termination of the 

 tail/'' In the absence of any figure it is impossible to clear 

 up the obscurity of this description of the pleuropodium as 

 continuing behind the termination of the tail. 



