PROF. OWEN ON NEW AND RARE CEPHALOPODA. 139 
Genus SEPIOLA. 
Species SEPIOLA OWENIANA, d’Orb. 
I subjoin a description and figure of the male organs of Sepiola oweniana, d’Orb.* 
(Pl. XXVI. fig. 2) for comparison with those of Sepiola grantiana, d’Orb.’, from which 
the difference of the subject of fig. 2, Pl. XXIV. is so great as to lead me to conclude 
that the complexities of the organs had failed to be unravelled by the deservedly esteemed 
French authorities on the present highly organized class of Mollusca. 
In Sepiola oweniana the testis (ib. fig. 2, a) is pyriform, convex on one side, the 
opposite surface converging to a low ridge, from which the sperm-duct (vas deferens, 6) 
is continued. This duct is relatively shorter and has fewer convolutions than in Sepio- 
teuthis. The “vesicula seminalis,” ¢, is relatively longer, more slender, and shows a short 
fold in its forward course. The prostate, d, is rounded, its secretion is carried into the 
fore end of the “ vesicula” by a relatively longer duct than in Sepioteuthis and Octopus. 
The duct, ¢, proceeds from the confluence of those of the vesicula and prostate, 
and, describing a turn round the hinder and smaller portion of the spermatophorous 
pouch, opens into its fundus. This pouch, f, is relatively larger than in Septioteuthis 
or than in Octopus*; it is oblong, partially divided into two compartments by the slight 
constriction along which the vesiculo-prostatic canal curves. The spermatophorous duct, 
short and wide, g, comes off near to the large anterior end of the pouch, and conveys 
the movable “filaments of Needham ” into the base of a conical penis, h. 
Fam. TEUTHID#, Owen‘. 
Section a°. 
Subfam. Lotigoprsin#, d’Orb.® 
Genus Lo.icopsis, Lam.’ 
Species Lonicopsis oceLLata, Ow. (Plate XXVI. figs. 3-8, & Plate XXVIL.) 
This species, in the relative magnitude of the head and shortness of the trunk, departs 
from the generic character derived by d’Orbigny from the few specimens of the singu- 
larly modified Decapods forming Lamarck’s genus “ Loligopsis” at the date of publica- 
tion of the great work quoted below®. Nevertheless the essential characters of the 
? Op. cit. p. 229. 2 Thid. Sepiola, pl. ii. fig. 11. 
> See Cuvier, Mémoires &c. des Mollusques, 4to, 1817, ‘* Poulpe,” pl. iv. fig. 5, e. 
* Trans. Zool. Soc. vol. ii. p. 129. 5 Tbidem (1836). 
5 Op. cit. p. 320 (1835-1848). 7 Extrait du Cours d’Hist. Nat., 1812. 
8 «Genre Loligopsis, Lamarck. Animal pouryu d’une téte trés petite par rapport 4 ensemble, et d’un corps 
trés allongé.—” Op. cit. p. 320: fol., 1839. 
VOL. XI.—PaRT v. No. 2.—June, 1881. 2A 
