126 
MOLLUSC A. 
Lucrino, are treated in the official report on fishery to the Minister of Agri- 
culture, by Taugioni-Tozzetti. Genoa: pp. 7, 8, 38-63, and 63. 
R. Garner treats shortly of the pearls of the freshwater shell Alaa^ 
modoti [Margaritana] margaritifem in Great Britain \ he proposes to intro- 
duce pearls of Mytilus into the Alasmodon to improve them, and also to 
wash the pearls of the latter in a dilute solution of potassium. J. L. S. xi. 
pp. 426-428. 
CEPHALOPODA. 
DIBKANCHIA. 
Argomuta pacijica (Dali, Am. Nat. iii. 1869, p. 237) perhaps =Reeve^s 
figure 2c, maintained as a distinct Californian species by Dali, Am. J. Conch, 
vii. p. 96. 
Argonauta expansa^ sp. n., Dali, P. Cal. Ac., Dec. 1872, Gulf of California. 
Eledune not very rare on the coast of South Devon, and Sepia officinalis 
observed in copula, by Spence Bate, 4th Rep. on the Fauna of South Devon. 
Q. J. Micr. Soc. (2) xii. p. 403. 
Sipia Jilliouxi and Jischeri (Lafont) described by P. Fischer, J. de Conch. 
XX. pp. 19 & 20, Arcachon j for the first F<$russac and D’Orb. Ceph. pi. 2. figs. 
1-3, are cited. 
Loligo vidgaris (Lam.), affinis, mim'ocephala, moulinsi, macrophthalma (La- 
font), forhesi (Steenstrup), dind pulchra (Blainv.) = 6er<Ac/o<i (Fischer, J. de 
Conch. 1869), all from the oceanic coast of France, comparatively described 
by Lafont, J. de Conch, xx. pp. 21-25. 
Loliolus steenstrupi, sp. n., Dali, Am. J. Conch, vii. (1871), p. 97, Gulf of 
California. 
Onychoteuthis ? lohipcnnis, sp. n., id. ibid., p. 96 j oil* S. Francisco. 
Ominastrephes crassus (Lafont) described and compared with O. sagittatus 
(Lam.), Lafont, /. c. pp. 26 & 26, Western France. 
TETRABRANCHIA. 
Hyatt’s elaborate paper on the embryology of the fossil Cephalopods (Bull. 
Mus. C. Z. iii. no. 6) contains valuable information concerning the first whorls, 
septa, and layers of the shell of the recent Nmdilus, compared with the oldest 
fossil species of the same genus, Goniatites, Ammonites, &c. 
H. Woodward compares the chambered structure of Nautilus with the 
void spaces found almost regularly between the layers of the inside of some 
oysters. Brit. Assoc. Rep. 1870, pp. 128 & 129. 
PTEEOPODA. 
Cleodora occidentalis, sp. n., Dali, 1. c. p. 140, North Pacific, lat. 33“^ N. 
Corolla, n. (Ci/mbuliidce), id. ibid. pp. 137 & 138. Pinnae forming a single 
disk with reticulated muscular bands, separated by a deep sinus from the oral 
portion. (Esophagus produced, oral aperture trumpet-shaped, produced into 
two points. Shell entirely absent. — C. spectabilis, sp. n., id. 1. c., North Pacific 
Ocean, lat. 42° N., pelagic. 
Limacinu pacifica, sp. n., id. 1. c. p. 138, Monterey. 
