352 
chestnut brown; and is 6°3 mm. long, 5 mm. high, and 3% 
mm. in section. 
Hab.—Type, 130 fathoms off Cape Jaffa, with several 
valves; 90 fathoms, two alive and eighty-four valves; 300 
fathoms, many valves; 110 fathoms off Beachport, six valves; 
150 fathoms, twenty-four valves; 200 fathoms, twenty-three 
valves; 104 fathoms, thirty-five miles south-west of Neptune 
Islands, one alive, and many fresh valves. 
Diagnosis.—It is most like Venericardia bimaculata, 
Deshayes; but is a more delicate shell, has more and nar- 
rower ribs, which are much more closely and finely scaled. 
The same features distinguish it from V. guoyi, Desh., and 
V. difficilis, Desh. 
Type in Dr. Verco’s collection. 
Carditella exulata, E. A. Smith. 
Carditella exrulata, EK. A. Smith; Challenger Rep., Zool., 1885, 
vol. xili., p. 215, pl. xv., f. 6, 6a. Type locality.—‘‘Off Nightin- 
gale Island, Tristan d’ Acunha, 100 to 150 fathoms.’’ 1m.— 
Length 4 mm., height 2'75, width 2 mm. 
Our shells were taken in 130 fathoms off Cape Jaffa, four 
valves; 110 fathoms off Beachport, six valves; the beach at 
MacDonnell Bay in shell sand, many valves and one living 
individual; and at Kingston, Lacepede Bay, shell sand, many 
valves. I cannot detect any specific difference between these 
examples and Mr. Smith’s, from his description and figure, 
except that ours are smaller, measuring 2°8 mm. by 1°8 mm. 
Some valves have the posterior part internally and the region 
of the lateral teeth stained brown. ‘Tristan d’Acunha lies in 
about 12 deg. west longitude, and 374 deg. south latitude, 
in the middle of the Atlantic Ocean. Beachport is in about 
1394 deg. east longitude, and 374 deg. south latitude. The 
latitude in which the type shells and ours were taken is, 
therefore, exactly the same; as is also the depth, 100 to 150 
in the one case, and 110 in the other. These two circum- 
stances might to some extent explain their identity. It will 
be noted, however, that most of our specimens were taken 
on the. beach, where also the only living individual was 
secured. If the identification is correct, the distance be- 
tween the two stations of 162 parallels of longitude, which 
at that latitude may be computed as about 9,000 miles, is 
very interesting. 
Carditella subtrigona, Tate. 
Carditella subtrigona, Tate, Trans. Roy. Soc., S. Austr., vol. 
ix., p. 70, pl. iv., f. 10. Type locality —Streaky Bay, Great Aus- 
tralian Bight; Tate, op. cit., vol. xiv., p. 268. 
Dredged alive at all depths from 17 to 24 fathoms in 
Gulf St. Vincent, Investigator Strait, and Backstairs Pas- 
sage, as far out as Newland Head. 
