67 



Fam. II. ACICULID^E. 



Head with a rather produced aculeated proboscis, truncated at 

 the end. Tentacula subulate. Eyes on the back of the head, 

 between, and rather behind the base of, the tentacula. 



Foot oblong, short. 



Shell spiral, turrited. Mouth ovate. 



Operculum spiral, few-whorled, thin. 



Auriculadse (pars) Gray, Syn. B.M. 1840, Turtoris Man. 2nd ed. 



222., Proc. Zool. Soc. 1848, 130. 

 Cyclostomacea (pars) Pfeiffer, Zeitsch. f. Malak. 1847, 103. 



These animals have been confounded with Auriculadce. Fe- 

 russac (Diet. Class. H. N. ii. 90. 1822) first noticed the operculum, 

 and Mr. Alder has more lately described it. 



1. ACICULA. 



Operculum very thin, glassy, few-whorled. — Shell subimperforate; 

 cylindrical. Peristome rather thickened, with sub-parallel mar- 

 gins joined by a thin callus. 



Acicula Hartmann in Steinmuller, Neue Alpina, i. 205. 215. 1821 



(not Risso, 1826, nor Blainv. 1825) ; Pfeiffer, Archivf. Naturg. 



i. 228. 1825, in Menke und Pfeiffer, Z.f Malak. 1847. 

 Auricula (pars) Draparnaud. 

 Carychium Studer. 

 Carychium sp. Fleming, Brit. Anim. 1828; Potiez et Mich. Gal. 



Moll. Douai. 

 Acme Hartmann, 1828 ; Sturm, Faun. vi. 37. 1821 ; Gray, Turt. 



Man. 2nd ed. 222. 

 Acmea Gray, Proc. Zool. Soc. 1847, 180. 

 Turbo sp. Montag. B. Shells. 

 Bulimus sp. Turton. 

 Cyclostoma sp. Ferussac, Diet. Class. Hist. Nat. ii. 90. ; Porro ; 



Alder, Moll. North. ; Quoy Sf Gaim. Voy. Astrol. ii. 186. 

 Pupula Agassiz in Charpent. Catal. 22. 1839; Hartmann, Erd 



et Sussw. Gasterop. 1840. 

 Auricella sp. Jurine. 



N. B, Acmea Hartmann in Steinmuller, Neue Alpina, 204. 212., 

 according to Herrmannsen, i. 15., is established on Cyclostoma 

 truncatula Drap., and is synonymous with Truncatella Risso. 

 Acmsea of Eschscholtz is the Lottia of Gray. 



