82 Moll . 
VII. MOLLUSCA. 
Ostrea edulis , Linn., on the di-myarian stage; Webb, J. Malac. iv, 
pp. 15-18, figg. : note on larval stage, di-myarian condition not yet 
found; Woodward, P. Malac. Soc. London, i, pp. 297-299, figg. : 
seat of coloration in brown oysters ; Chatin, C.R. Ac. Sci. cxx, 
pp. 884-887 : analysis of the shells of oysters ; Chatin & Muntz, 
t. c. pp. 531-534 ; on the occurrence of a noteable proportion of 
phosphorus in oysters; Chatin & Muntz, t. c. pp. 1095-1097. 
O. jacobceajucasiana, angelica , p. 241 ,turturina, p. 242, Gulf of California ; 
Rochebrune, Bull. Mus. Paris,, i : n. spp. 
Pecten townsendi, Kurachi; Sowerby, P. Malac. Soc London, i, p. 21 6, fig.: 
n. sp. 
Perna recognita Lower California; Mabilee, Bull. Soc. Philora. vii: n. sp. 
Philobrya , passes through a glochidium stage; Dale, Tr. Wagner Inst, 
iii, p. 487. 
P. atluntica , off Argentine coast; Dale, P. U. S. Mus. xviii, p. 16 : n. sp. 
Plicatula spondylopsis , ostreivaga, Gulf of California ; Rochebrune, 
Bull. Mus. Paris, i, p. 242 : n. spp. 
j * Posidonomya buchi } Roemer, in the Balaclava Schists ; Stremoouciiow, 
Bull. Soc. Moseou, 1895, p. 391, figg. 
Spondylus amerieanus , Lamk., on the toxic properties of ; Rochebrune, 
Bull. Mus. Paris, i, pp. 151-156. 
S. exilis , Kurachi; Sowerby, P. Malac. Soc. London, i, p. 280, fig : n. sp. 
FILIBBANCHIA TA. 
Anomia simplex, Lower California; Mabieee, Bull. Soc. Philom. vii, 
p. 73 : A. walkeri , Bay of Islands, Auckland ; Hector, Tr. N. Zealand 
Inst, xxvii, p. 292 : n. spp. 
Area tetragona, mode of fixation by the byssus ; Boutan, C.R. Ac. Sci. 
cxx, pp. 208-210. 
A. stearnsii, Japan; PlESBRY (322), p. 148, figg. : A . ( Barbatia ) nova , 
p. 71, digueti , p. 72, Lower California ; Mabiele, Bull. Soc. Philom. 
vii : n. spp. 
Dactylus tripartitas , Aden; Jousskaijme, Naturaliste, 1894, p. 201 : n. sp. 
Limopsis compressus , Gulf of Panama; Dale, P. U. S. Mus. xviii, p. 16 : 
n. sp. 
Modiola gallica i W. coast of France ; Dautzenberg, Feuille Natural, 
xxv, p. 97, figg. 
•\Myalina bilsteinensis, on the age of ; Kayser, Jahrb. geol. Landesanst. 
Berlin, xv, pp. 122-138, 2 pis. 
■\Mysidiopterai n. g., for M. ornata , n. sp., Trias of Yal di Rosalia ; 
Salomon, Palseontogr. xlii, p. 117, figg. 
Opisthocoelus , n. g., type f 0. concentricus , n. sp., Devonian, Germany ; 
Beushausen, Abh. Preuss. geol. Landesanst. xvii, p. 338, figg. 
Pectunctdus guesi , Aden; Jousseaume, Naturaliste, 1895. p. 187 : P. arco- 
dentiens , off Hawaiian Is. ; Dall, P. U. S. Mus. xvii, p. 705, fig. : 
n. spp. 
