38 Moll. 
MOLLUSCA. 
Statistical note on the export of Haliotis -shell and pearl oysters from 
the Pacific Coast of North America, by Dall, Bull. U. S. Fish Comm, 
iii. 1883, p. 425, and Science, 1883, p. 81 ; abstract in Nachr. mal. Ges. 
1883, p. 116. 
Species of Unio and Anodonta employed as food in Ottawa; Nachr. 
mal. Ges. 1883, p. 117. 
On the edible oysters of New Zealand ; Cox, P. Linn. Soc. N. S. W. 
vii. pp. 555-560. 
Notes on Japanese shell-mounds, by D. Brauns, in CB. Ges. Anthrop., 
Feb. 1883, and Nachr. mal. Ges. 1883, pp. 67-71. 
Teredo. Cement as preservative against its ravages; Horton, Nachr. 
mal. Ges. 1883, p. 61. 
Collecting. 
B. B. Woodward, “The Young Collector’s Handbook of Shells,” 
London, small 8vo, may be mentioned here ; cf. Ann. N. H. (5) xii. 
p. 65. 
A. G. Wetherby publishes directions for collecting and preparing 
land and fresh-water shells in J. Cincinn. Soc. v. pp. 44-51. 
Improved stick or umbrella for collecting shells, described by Clessin, 
Mal. Bl. (2) vi. p. 204. 
CEPHALOPODA. 
The chromatophores of the Cephalopoda have no distinct envelop- 
ing membrane or radiating muscles, but are simply amoeboid cells, 
like those of Fishes, Batrachia , and the Chamaeleon, very active, and 
under the influence of the nervous system; R. Blanchard, C.R. xcvi. 
pp. 665-658 ; abstract in Ann. N. H. (5) xi. p. 292, and in Bull. Soc. 
Zool. vii. pp. 492-496. The development of the chromatophores from 
simple cells observed in Sepiola , and described by P. Girod, Arch. Z. 
exp£r. (2) i. pp. 225-266, pi. xiv. ; preliminary abstract in C.R. xcvi. 
pp. 1375-1377 ; abstract in J. R. Micr. Soc. (2) iii. pp. 494 & 495, and 
Le Nat. No. 41, p. 322. 
The structure of the cups in the arms of the Cephalopods examined 
by P. Girod, C.R. xcvii. pp. 195-197 & 338-340. 
The development of the gills in the Cephalopods is the subject of a 
paper by L. Joulin, tom. cit. pp. 1076-1078. 
Octopus maculosus , sp. n., Hoyle, P. Phys. Soc. Edinb. vii. pp. 319-322, 
pi. vi., Australia. 
Cirroteuthis umbellata , sp. n., P. Fischer, J. de Conch, xxxi. pp. 402-404, 
West coast of Africa, 1139-2235 metres. 
Ommatostrephes sagittatus (Lam.) found alive at Eastbourne ; F. C. S. 
Roper, Ann. N. H. (5) xi. p. 288. 
[ Megateuthis .] Note on giant Cephalopods in Japan by Mohuicke in 
his work, “Blicke auf das Pflanzen- und Thierleben in den niederland- 
ischen Malayenlandern,” Munster, 1883; also Nachr. mal. Ges. 1883, p. 188. 
