Clare Inland Survey — Arcluannelida and Polychaela. 47 07 



Laonice cirrata (Sara). 



1867. Scolccolepis {Laonice) cirrata. Malmgren, p. 91. 1896. Laonice 



cirrata. Mesnil, p. 247. 1909. S. (Laonice) cirrata. Mcintosh, p. 160. 



This species is very common in Clew Bay, living usually on a sandy 

 bottom. It is occasionally taken in the tow-net at night. 



The anal segment bears nine long slender cirri and two short blunt 

 ventral cirri. 



Mature specimens were found in August. 



Habitat. — Clew Bay — Dredged on 10 occasions, in 5-27 fms. 



Distribution. — British Isles ; Arctic ; Scandinavia ; Canada. 



Genus Nerinides. 



This genus was created by Mesnil (1896, pp. 119, 152) for the species 

 which de Saint-Joseph described under the name Nerinc longirostris Quatr. 

 (1894, p. 74). Mesnil gives some reasons (p. 164) for thinking that 

 the Nerinc longirostris of Quatrefages is identical with Nerinc cirratulus 

 (D. Chiaje), but the description of Quatrefages is too meagre to decide this 

 point with certainty. The discovery of a new species, described below, does 

 not necessitate any change in the generic description given by Mesnil. This 

 genus is intermediate between Spio and Nerine, and is very closely allied to 

 both of them. 



A species has recently been described by Mcintosh (1909, p. 175) under 

 the title Nerinides lamellata, from Tangiers Bay. Only the anterior end was 

 found, but it exhibits none of the generic characters of Nerinides. The head 

 is broadened in front, with lateral peaks. The first setigerous segment bears 

 a branehia and both dorsal and ventral bundles of setae. The dorsal lamella 

 is shorter than the branehia, and is separated from it distally by a deep 

 indentation. The ventral modified setae are wingless, and simply pointed. 

 It is not clear from the description given what genus this species belongs to, 

 though it seems to have great affinities with Scolecolepis, but at any rate it is 

 not a Nerinides. 



Nerinides longirostris (Quatr.) de St.-Joseph. 



1894. Nerinc longirostris. De St.-Joseph, p. 74. 1896. Nerinides 



longirostris. Mesnil, p. 152. 



This species was occasionally found in clean sand in Blacksod Bay, but is 

 nowhere abundant. As stated above, there is reason to doubt whether the 

 Nerinc longirostris of de St.-Joseph is identical with the Malacoceros longirostris 

 of Quatrefages (1865, p. 414). 



Habitat. — Blacksod Bay — Bound on 6 occasions, in clean sand. 



Distribution. — Dinard ; ? St. Malo. 



R.I.A. PROC, VOL. XXXI. N 47 



