358 Rev. Canon Norman—A Month on 
of R. Teste. The lip is considerably thickened, and sculptured 
externally with many fine longitudinal strie. I think that 
there can be little doubt that these two forms are one species. 
It is possible also that &. subsoluta is not specifically distinct 
from them. 
2. Alvania subsoluta (Aradas). 
1847. Rissoa subsoluta, Aradas, Mem. di Malac. Sic. vol. i. p. 21. 
1853. Rissoa abyssicola, Forbes & Hanley, Hist. Brit. Moll. vol. ii. 
p. 86, pl. Ixxvii. figs. 1,2, and pl. JJ. fig. 3 (varietatis abyssicola 
figura bona). 
1867. Rissoa abyssicola, Jetireys, Brit. Conch. vol. iii. p. 19, pl. Ixvi. 
fig. 9 (figura mala). 
1878. Alvania abyssicola, G. O. Sars, Moll. reg. arc. Norv. p. 177, pl. x. 
fig. 7, a—c (formee typicee optime figure). 
1870. Frssoa abyssicola, var. obtusa, Jetfreys, “ Mediterranean Mol- 
lusea,” Ann. & Mag. Nat. Hist. ser. 4, vol. vi. p. 12 (separate copy). 
1875. Rissoa elegantissima and subsoluta, Monterosato, Nuova Revista 
delle Conch Medit. p, 17. 
1884. Rissoa subsoluta and R. Teste, var. abyssicola, Jeffreys, Proc. 
Zool. Soc. p. 115, pl. ix. fig. 3. 
P1884, Ressoa deliciosa, id. ibid. p. 121, pl. ix. fig. 7. 
1884. Actonia subsoluta, Monterosato, Nomen. gen. e spec. di aleune 
Conch. Medit. p. 61. 
Specimens in my collection are as follows :— 
a. “Alvinia elegantissima, Palermo” *, from Marchese di 
Monterosato.—Three specimens. 
b. “Actonia subsoluta=deliciosa, Palermo,’ from Monte- 
rosato.—TI"our specimens. 
’ 
c. “Rissoa subsoluta, Aradas, Palermo, very deep,” from 
Monterosato.—T'wo specimens. 
d. Off Batalden, near Floré, Norway, 200 fath.—Two speci- 
MENS eat ViewNs 
e. Oster Fiord, near Bergen, 375 fath.—Five specimens, 
A. M.N. 
J. Off Lervig, Hardanger Fiord, 200 fath.—Five specimens, 
AZ MEN: 
g. Rédberg, Trondhjem Fiord, 250-300 fath.—Twelve speci- 
mens, A. M. N. 
h. Loch Fyne.—F ive specimens, Mr. MacAndrew. 
7 The Kattegat—Five specimens from the Copenhagen 
Museum. 
a and 6 (received at different dates) are identical and rather 
* Monterosato subsequently united his A. elegantiss’ma with A. sub- 
soluta. 
