CEPHALOPODA (dIBRANCHTATA.) 
Moll. 37 
Rossia patagonicaf sp. n., E. A. Smith, P. Z. S. 1881, p. 22, pi. iii. fig. 8, 
West coast of Patagonia. 
Sepiola oweniana (Orb ), male organs described by R. Owen, Tr. Z. S. 
xi. p. 139, pi. xxvi. fig. 2. 
Stoloteuthis, g. n., free eye-lids, round pupils, webbed arms, no pen, for 
Sepiola leucoptera (Verrill) ; Verrill, Am. J. Sci. (3) xxii. p. 412. 
Inioteuthis, g. n., differs from Sepiola by wanting a pen ; type, Sepiola 
japonica (Orb.) ; id. ibid. 
Heteroteuthis tenera, sp. n., Verrill, Am. J. Sci. (3) xx. [1880] p. 392, 
East coast of United States, 32°-40° N. lat., also Bull. Mus. C. Z. viii. 
p. 103, pi. iii. fig. 3 & pi. vii. figs. 2 & 3, and P. U. S. Nat. Mus. iii. p. 360. 
Loligo patagonica, sp.n., E. A. Smith, P. Z. S. 1881, p. 24, pi. iii. fig. 2, 
West coast of Patagonia. 
Calliteuthis reversa, sp. n., Verrill, Am. J. Sci. (3) xx. [1880] p. 393; 
female described by the author, Tr. Conn. Ac. v. p. 296, pi. xlvi. fig. 1 ; 
P. U. S. Nat. Mus. iii. p. 362, and Bull. Mus. C. Z. viii. p. 112, pi. vii. 
fig. 1, South of Newport, 365 fath. 
Sepioteuthis brevis, sp. n., Owen, Tr. Z. S. xi. p. 137, pi. xxvi. fig. 6, 
Japan. 
Sepia uses its two long tentacular arms for seizing its prey at some 
distance by darting them out; Lloyd, in Owen’s paper, Tr. Z. S. xi. 
p. 135, with 2 woodcuts. 
Sepia 2 )almata, sp. n., Owen, Tr. Z. S. xi. p. 134, pis. xxiv. & xxv., Nor- 
folk Island, Australia. 
Sepia brevimana (Steenstr.), calcareous layers in the hinder end of the 
shell, figured by Steenstrup, 1. c. pi. i. figs. 24-26. 
Monstrosity of Sepia officinalis by introflexion of the front part ; 
Richiardi, P.v. Soc. Tosc. (May) 1881, and Zool. Anz. iv. p. 407. 
Sepiadarium, g. n. General aspect like Sepiola, but upper edge of the 
mantle fixed on the back to the neck, and on the sides united with the 
funnel ; no internal shell ; male with the left arm of the fourth pair 
hectocotylized and without flap in the funnel. S. kochi, sp. n., Steen- 
strup, Dan. Selsk. Skr. (6) i. pp. 214-218, & 235, pi. i. figs. 1-10, Mol- 
luccas, China, Japan. 
Idiosepius, g. n. General aspect of Rossia, fins small, nearly termi- 
nal, arms short, and support of the mantle as in Sepia ; no internal shell ; 
in the male the right and the left arms of the fourth pair hectocotylized, 
with only one sucker and membranaceous edges, the left very slender. 
I. pygmaeus, sp. n., only 12-15 mm., Indian Sea. Steenstrup, 1. c. 
pp. 219-224 & 236, pi. i. figs. 11-22. 
Spirula. Several observations on the very small terminal fins, the 
really internal position of the shell, the structure of the funnels, the 
disposition of the eggs and spermatophores, and a difference in the shape 
of the shell (perhaps sexual) it being more involute in the female ; 
id. 1. c. pp. 227-230 & 237, pi. i. fig. 23. 
H. V. Ihering thinks that the Aptychus of the Ammonites is homo- 
logous to the cartilages of the neck in the dibranchiate Cephalopoda, and 
that the Ammonites, therefore, belong to the Dibranchiata ; JB. 
Mineral. 1881, pp. 44-92. 
