SQUIDS, ETC. 75 
(Fig. 80), but are occasionally cast ashore on the New 
Jersey and New England coasts; nine species are known. 
Fic. 80.—Argonauta argo.—B, shell-less male; 4, the hectocotylus 
detached. 
Works on Mollusca for further reference. 
‘Challenger Reports”; ‘‘ Smithsonian Reports” ; ‘‘ Semper’s Ani- 
mal Life” ; Binney and Gould’s “ Shells of Massachusetts” ; “ Inverte- 
brates of Vineyard Sound,” Verrill ; “ Terrestrial Air-breathing Mol- 
lusks of the [nited States,” W. G. Binney; “ Bulletin of Museum of 
Comparative Zoology,” vol. iv., 1878 ; “‘Fresh-water Mollusks,” E, S. 
Morse, ‘‘ Popular Science Monthly,” vol. vii, p. 563 ; ‘‘ Natural His- 
tory of the Oyster,” “ Popular Science Monthly,” vol. vi; ‘‘ The Teredo 
and its Depredations,” “ Popular Science Monthly,” vol. xiii ; ‘‘ De- 
velopment of the Pond-Snail,” E. R. Lankester, “ Quarterly Journal 
of Microscopical Science,” 1874 ; Woodward’s ‘‘ Manual”; “ Colossal 
Cephalopods of the North Atlantic,” A. E. Verrill, “ Report of United 
States Fish Commission, 1882 ;” “ Discovery of an Octopus inhabiting 
the Coast of New England,” ‘‘ American Naturalist,” vol. vii; ‘‘ Em- 
bryology of Fossil Cephalopods,” A. Hyat, “ Bulletin of Museum of 
Comparative Zoology,” vol. iii, No. 5; “ Mollusca,” ninth edition, 
“Encyclopedia Britannica,” E. Ray Lankester. 
