28 Moll. 
MOLl-USCA. 
CEPHALOPODA. 
H. V. Ihering, Vergl. Anat. Neryensyst. Moll., describes specially the 
nervous system of Sej)ia officinalis^ and comes to the conclusion that the 
funnel alone is the homologue of the foot in the Gastropoda^ being sup- 
plied from the same nerve -ganglion, and that the arms belong really to 
the head, and are to be compared with the conical appendages of the 
head of some Pteropoda ; the brachial ganglion, which gives origin to 
the nerves of the arms, being a detached portion of the cerebral gan- 
glion. He describes also the sympathetic nerves of Nautilus^ not hitherto 
known. 
G. Pfeffeu notes the existence of a nerval commissure between the 
two ganglia stellata in Octopus and Eledone^ which has been denied by 
other naturalists ; Z. wiss. Zool. xxviii. pp. 203 & 204. 
Architeuthis princeps (Verrill). A specimen of this gigantic squid, cast 
ashore after a severe gale at Catalina, Trinity Bay, Newfoundland, 
September 24th, was found still living. The length of the body 9’6 feet 
from tip of tail to base of arms, circumference 7 feet, length of the ten- 
tacular arms 30 feet, length of the upper mandible 5’25 inches, diameter 
of a great sucker 1 inch. A. E. Verrill, Am. J. Sci. (3) xiv. p. 425 ; 
abstract in “ Kosmos,” ii. p. 483. 
Architeuthis mouchezi, sp. n., V41ain, Arch. Z. exper. vi. p. 1, St. Paul 
Island. 
Sepia brachychira^ sp. n., O. Tapparone Oanefri, Ann. Mus. Genov, ix. 
p. 278, Sorong Island, near New Guinea. 
Nautilus pompilius (L.) does not live in deep water ; Bennett, Ann. 
N. H. (4) XX. pp. 331-334. 
First whorls of the shell and the scar on its blunt tip described by J. 
Barrande, “ Cephalopodes du systeme silurien de laBoheme,” vol. ii. pt. 5, 
pp. 42-62, pi. cccclxxxix. figs. 10, 1-7. 
PTEROPODA. 
H. v. Ihering contradicts the views of Huxley, Gegenbaur, and Gren- 
acher as to the morphological homologies of some organs, from his 
researches into the nervous system j according to him, the conical processes 
at the head of CliOy named by him “ cephaloconi*' are neither tentacles nor 
parts of the foot. The wings are morphologically lateral parts of the 
foot, for which he proposes the name pteropodia^* being supplied by 
the same ganglion as the middle part of the foot. 
Hyalcea (19 species), Cleodora (4), Balantium (4), Triptera (1), Cresis 
(6), and Spirialis (8), figured by Sowerby, in Reeve’s Conch. Icon., 
parts 336 & 337, Pteropoda, 6 plates ; Hyalcea cumingi (Desh. MS.), 
fig. 5, ohtusa, fig. 8, minuta, fig. 9, intermedia, fig. 10, and Cleodora lohata, 
fig. 26, Atlantic Ocean, are apparently new. 
Limacina helicoides, sp. n., Jeffreys, Ann. N. H. (4) xix. p. 338, 
Northern Atlantic. 
Clione borealis (Pall.) described from specimens found at Disco har- 
