178 
MOLLUSCA. 
Sohnella inconspima^ sp. n., H. Adams, P. Z. S. 1870, p. 793, Red Sea. 
Leda pusilltty sp. n. (Obieregliini), Brusina,Ohieregh. Conch, p. 93, Adriatic. 
Leda acuminata, sp. n., Jefireys, Ann. N. H. (4) vi, p. 69^ Mediterranean 
and West Coast of Ireland. 
Leda in'adiata, sp. n., Sowerby, P. Z. S. 1870, p. 260, China seas. 
Leda dissimilis, sp. n., Sowerby in Reeve’s Conch. Icon. pi. 2. f. 9, locality 
unknown. 
Yolda nana, sp. n., Sar.s, Bidr. Christ. Faun. p. 98, Christiana-fjord, Har- 
danger-fjord and Lofoten. Jeffreys thinks it to be identical with Leda 
frigida, Torell, which, however, is distinct from Leda lucida, Ann. N. H. (4) 
V. p. 440. 
Yoldia ohtusa, sp. n., Sowerby in Reeve’s Conch. Ic. pi. 2. f. 10, locality 
unknown. 
Sohnella, three species figured by Sowerby in Reeve’s Conch. Icon, part 
284, 286, 1 pi. 
Sohnella subcequalis, sp. n., Sowerby, P. Z. S. 1870, p. 250, pi. 21. fig. 5, 
Rio Janeiro. 
c TuiGONIIDiE. 
Vorticordia and Hippagus. See Anatinidce. 
PECTINIDiE. 
Pecten ahyssorum, Lov^n, shell and living animal described by Sars, Bidr. 
Christ. Faun. p. 99, Christiana-fjord, 20-230 fathoms ; Hardanger-fjord, 
to 450 fathoms j Manger, near Bergen, 40-50 fathoms ; Lofoten Islands, 
80-300 fathoms. — P. aratus (Gmelin) = sulcatus, Miill., Lov^n, not Lam., 
two varieties, one of which very similar to islandicus (L.). Sars, ibid. p. 100. 
Pecten quadriliratm, sp. n., Lischke, Mai. Bl. xvii. p. 29, Nangasaki. 
Limcea pectinata, sp. n., II. Adams, P. Z. S. 1870, p. 7, pi. 1. fig. 11, 
Red Sea. 
Padula tenuis and P. (Limatula) pusilla, spp. nn., II. Adams, 1. c. p. 793, 
pi. 48. f. 18, 19, Red Sea. 
OSTREIDAE. 
Ostrcea [ Ostreal. Sowerby begins the monograph of this genus, in the 
continuation of Reeve’s Conchologia Iconica, parts 284-287, with 16 plates 
and 35 figures. Apparently new among them are : — O. helcheri, pi. 7. f. 11, 
Eastern Seas ? ; lurida. Carpenter F, pi. 9. f. 16, Mazatlan; permollis, pi. 10. 
fig. 18, hab. — P j ochracea, pi. 10. f. 19, Mazatlan ; angassi, pi. 13. f. 27, Port 
Jackson; solida, pi. 14. f. 28, Gulf of Panama ; radix, pi. 16. f. 80, hab. — P ; 
chiloensis, pi. 16. f. 33, Chiloe [^=chilensis, Philippi] ; mexicani, pi. 16. f. 35, 
Tehuantepec. 
Ostrea edulis (L.) occurs on the coast of East Fi'iesland only 
ofiF the islands, in depths of 16-18 fathoms sporadically, and in 
those of 20-25 fathoms gregariously; they almost all hear 
specimens of Balanus porcatus (Da Costa) and Verruca strcemia 
(Mull.) on their shells. . Within the estuaries the strong tidal 
movement of the water seems to hinder their spontaneous 
growth. The oyster-banks which occur there are probably 
caused by artificial importation, although mentioned as long 
