MOLLUSCA. 831 
Sp. Argonauta Argo L., Pout 1. 1. Tab. 4o—43, Buatnv. Malac. Pl. t. fies it,” 
Pl. 1. bis; Rane, Guéirin Magas. de Zool. 1837, Moll. Pl. 86—88, from 
the Medit. Sea ;—Argonauta tuberculata Lam., Rumpu. Amb. Rariteith. 
Tab. 18, figs. 1, 4, D’ARGENV. Conchyl. Pl. 5, fig. c, from the Indian 
Ocean, &c. 
Note-—Here would seem to be the place of Bellerophon Mont. 
fossil, from the oldest strata. 
Octopus Lam. Body naked. Two horny lamelle in the back, 
inclosed in mantle. (Polypus of the ancients.) 
Amongst these naked eight-armed Cephalopods there were some species 
of which, as in the last, females alone were known, and of these it is that 
the hectocotylus of the male (now in some instances known) has been found 
attached in the sac of the mantle or in the funnel, as Octopus granulosus 
Lam. and Jremoctopus violaceus DELLE CHIAJE. See above, p. 820. 
Octopus auct. With a double row of suckers in the arms, 
Sp. Octopus vulgaris, Sepia Octopus L., Buainv. Malacol. Pl. 2, fig. 1, Cuv. 
R. Ani., éd. ill., Moll. Pl. 1. 
Tremoctopus DELLE CHIAJE. 
Sp. Tremoctopus violaceus DELLE CutasE, Memorie, Tab. 70, 1830. 
Eledone Leacu (édedevn Artstor.). With a single row of aceta- 
bula in arms. 
Sp. Octopus moschatus Lam., Buatnv. Malacol. PI. 2, fig. 2, Cuv. R. Ani., 
éd. illustr., Moll. Pl. 2, fig. 1. 
Cirroteuthis ESCHRICHT. 
Sp. Cirroteuthis Mulleri, Escuricut Nov. Act. Acad. Ces. Carol. N. Cur. 
XVII. 2, 1838, pp. 627—634, Tab. 46—48. A broad membrane connects 
the arms almost as far as the extremity. This species is a native of the 
coasts of Greenland. 
