Dr. J. E. Gray on the Bitentaculate Slug from Aneiteum. 195 
Haughton, and a large and splendid example of it is in Mr. 
Theobald’s collection. 
Pfeiffer mentions that a small unbanded variety of my Bulimus 
Sinensis (‘ Annals, April 1851), of which the original specimen 
was obtained by the lamented Dr. Theodore Cantor * from 
Southern China, occurs at Mergui. Capt. Haughton obtained 
the larger 2-banded variety at Sheoay-Gheen in Pegu. 
Cheltenham, July 31, 1860. 
XXVIII.—On the Bitentaculate Slug from Aneiteum. 
By Dr. J. E. Gray, F.R.S., V.P.Z.S. &c. 
In the ‘Annals and Magazine of Natural History,’ ser. 2. 
vol. xvii. p. 41, Mr. J. D. Macdonald describes and figures a 
bitentaculate Slug from the island of Aneiteum, which Mr. Mac- 
gillivray thought might be a species of Janella. Mr. Macdonald 
clearly proves that his Slug can have but very little affinity 
with that genus. 
The distinction between them has been further proved by the 
publication of figures of the living Janella, with its jaw, tongue, 
teeth, and other organs, by Mr. Knight, in the ‘ Linnzan Trans- 
actions,’ vol. xxii. p. 381, t. 66. 
We have lately received several specimens of a Slug from New 
Caledonia, which so closely resembles the one described and 
figured by Mr. Macdonald, that I am induced to believe it is 
the same species. 
I may state that it has no relation with my genus Janella 
further than belonging to the same Phytophagous group of the 
order, and that I am inclined to regard it as the type of a new 
family nearly allied to Limacina. 
This family (Anetteade) may be distinguished from Lima- 
cima by the small size of the mantle, which is most dilated on 
the right side, and in the front end being attached to the body, 
and not a free flap as in the true Slugs; in the entire absence 
of tentacles, there being only two elongated retractile eye- 
peduncles; in the head being furnished with a deep groove on 
each side above, arising from the sides of the front end of the 
mantle, diverging to the outer side of the eye-peduncles, and 
continued to the swollen upper edge of the mouth. 
-_ Italso differs from the Slug (Limaz) in the back having a central 
longitudinal groove, from each side of which diverge lateral 
* Dr. Cantor died at sea, whither he had been sent from Calcutta for 
change of air, in March last. He was indefatigable in his profession ; and 
his researches have added largely to our knowledge of the natural history 
of Asia. 
