74 Moll . 
VII. MOLLUSCA. 
Unionidce i on the descent of the Nayades ; Woehrmann, Jahrb. 
geol. Reichsanst. xliii, pp. 1-28, 2 pis. List of Palaearctic species 
of Unionidce ; Boettger, Nachrbl. deutsch. malak. Ges. 1893, 
pp. 65-79. Relationships and distribution of North American 
Unionidce ; Simpson, Amer. Natural. 1893, pp. 353-358. The Unio 
muddle ; Wright, Nautilus, vi, pp. 113-116 : see also sensible remarks 
by Prof. Wheeler, op. cit. vii, pp. 9 & 10. Review of Yon 
Jhering’s paper on Unionidce and Mutelidce ; Simpson, Nautilus, vii, 
pp. 17-21 : notes on the genera ; Pilsbry, t. c. p. 30. 
P8E UDOLAMELLIBRANGHIA TA . 
Ovtrea : in some species the heart is traversed by the rectum ; Pelse- 
neer, Bull. Soc. malac. Belgique, 1892 [1894], pi. lv, fig. 0. glomer- 
ata , embryology ; Kent, P. R. Soc. Queensland, vii (1891), pp. 37- 
40, 1 pi. Defensive phagocytosis in the green oyster ; Pelseneer, 
Bull. Soc. malac. Belgique, 1892 [1894], pp. lxii-lxiv. 
Pecten ( Pseudamusium ) vaucouverensis , Vancouver Is. ; Wiiiteaves, 
Ottawa Natural, vii, p. 133, figg., n. sp. 
Spondylm gcederopus , on the ocular nerves ; Chatin, C.R. Ac. Sci. cxvi, 
p. 1156. 
FILIBBANGEIATA. 
f Anthracoptera , on the affinities of, with new species ; Hind, Quart. 
J. Geol. Soc. xlix, pp. 249-257, figg. 
Crenella marmorata , Forb., iu the mautel of Ascicliella virginea, Mull. ; 
Meissner, SB. Ges. naturf. Berlin, 1893, pp. 259 & 260. 
■fLithodomus isilensis, Miocene, Sardinia, Parona, Atti Soc. Ital. xxxiv, 
p. 176, figg., n. sp. 
1 Modiolutus, n. g., for M. stultorum (n. n. for Modiola plicuta , Reeve, non 
Chemn.) ; Jousseaume, Naturaliste, 1893, p. 192, fig. 
My til us hamatoides, Eocene of Arkansas, Call, Rept. Geol. Surv. 
Arkansas, 1889, ii (1891), p. 202, n. sp. 
Scapharca deyrollei , penangana , Penang, Jousseaume, Naturaliste, 1893, 
p. 191, figg., n. spp. 
Trigonia : on the systematic position of the genus ; Woehrmann, Jahrb. 
geol. Reichsanst. xliii, pp. 1-28, 2 pis. f Trigonia: species from 
the Jurassic of Normandy, with 21 new species ; Bihot, Mem. 
Soc. Normandie, xvii, pp. 259-244, figg., and C.R. Ass. Franc. 
1892, ii, pp. 392-396. \T. semiundulata , McCoy, in New South 
Wales ; Etheridge, Jun., Rec. Geol. Surv. N.S. Wales, iii, 
pp. 115-117. 
