100 Moll. 
AlOLLDSCA. 
L. hebes, p. 234, pi. xix. fig. 7, L. despecta, p. 235, pi. xix. fig. 8, W. Indies, 
L. inopinata , p. 236, pi. xix. fig. 9, L. ramsayi , p. 241, pi. xx. fig. 3, off 
Sydney, L. novce-guineensis , p. 237, pi. xix. fig. 10, L. corbuloides, p. 239, 
pi. xx. fig. 1, S. of New Guinea, L. wcitsoni, p. 238, pi. xix. fig. 11, L. 
neoeriformis, p. 240, pi. xx. fig. 2, N. Australia, L. pvolata , p. 320, cut, 
N. Pacific, 2950 fath., L . ultima , p. 324, cut, Atlantic, 2740 fath., spp. nn., 
Smith (341). 
Malletia arrouana , p. 244, pi. xx. fig. 7, Arrou Is., M. pallida, p. 246, 
pi. xx. fig. 8, S. Atlantic, 2550 fath., M. veneriformis, p. 246, pi. xx. fig. 9, 
Bermuda, W. Indies, M. cuneata , p. 247, pi. xx. fig. 10, W. Indies, M. 
dunkeri , Japan, spp. nn., id. t. c. 
Nucula trigona , sp. n., Verrill, (367) p. 438, off Chesapeake Bay, 
1100-1500 fath. N. niponica , p. 226, pi. xviii. fig. 8, Japan, N. torresi , 
p. 227, pi. xviii. fig. 9, N. Australia, N. pernambucensis , p. 227, pi. xviii. 
fig. 10, Brazil, N. culebrensi-s, p. 228, pi. xviii. fig. 11, W. Indies, N. pro- 
fundorum, p. 229, pi. xviii. fig. 13, N. Pacific, 2050 fath., spp. nn., Smith 
(34i). 
Pleurodon ovalis , S. Wood, is a Nuculina ; id. t. c. p. 230. 
Portlandia dalli, sp. n., Behring’s Sea, Krause, (216) p. 27, pi. iii. 
fig. 1. 
Sarepta abyssicola , sp. n., N. and S. Pacific, 2050 and 2285 fath., Smith, 
(341) p. 243, pi. xx. fig. 6. 
Yoldia lischkeis p. 242, pi. xx. fig. 4, Japan, Y. hoy lei , p. 320, cut, N. 
Pacific, 2900 fath., spp. nn., id. t. c. 
Trigoniid^:. 
Trigonia. Remarks on the recent species, which are reduced to four ; 
Suhm, Chalk Nar. i. p. 462. 
Unionidji. 
Unionidce , list of, from Mississippi 'Valley ; Call (63). 
Anodonta. French species classed in 11 different groups ; 26 species 
enumerated, of which the following are new : A. hecartiana , A. thripe- 
desta , A. perroudi , A. spathuliformis, A. euthymeana , A. florenciana , A. 
lortetiana ; Locard, (238) viii. A. alseria, Lake Alserio, A. utriculosa, 
Udine, A. anxurensis, Lake Trasimene, A. stabilei, Modena, A. pad ana, 
Po, A. pinii, Po, A. longirostris , numerous localities, A. scapulosa, Lake 
Martignana, A. romana, Pontine Marshes, &c., A. leprosa , Pavia, &c., A. 
utinensis, Udine, A. villce, Lake Garda, A. paupercula, Lakes Garda and 
Como, A. cristata , Lakes Oggiono and Annone, spp. nn., Drouet(108). A. 
intemerata, Quiechow, A. filippiana, Houpe, A. fantoziatana, Quangtung, 
spp. nn., Heude, (172) pis. lxvii.-lxix. A. herculeus, “ Gerstford,” Darbi- 
shire (102), should be Gerstfeldt, but the species was originally described 
by Middendorf; it is probably = Dipsas plicatus : E. A. Smith, J. of 
Conch, iv. p. 366. Section of organ of Bojanus figured; Cole, Stud, 
micr. sci. iii. pi. iii. 
Cameronia bourguignati , G. marioniana , G. anceyi, spp. nil., Lake Tan¬ 
ganyika, Bourguignat, (41) pp. 26-30. C. giraudi , C. revoiliana , spp. nn., 
same locality, id. (41a) p. 107. 
