294 THE CEPHALOPODA. $ 258. 
The Eggs, at their escape from the ovary, are oval, and have a yellow, or 
rose-colored vitellus, containing a germinative vesicle and dot. 
The vitelline membrane has transverse and longitudinal folds on its 
internal surface, which extend into the vitellus,— giving the eggs a 
reticulated aspect.” 
The Spermatic particles are very active, of a cercarian, or a simply 
capillary form, and, as a whole, give the sperm a white color. Those of a 
cercarian form are proper to the Loligina, and consist of a cylindrical 
body to which is rather abruptly attached a small and pretty long tail. 
Those of a capillary form are found with the Octopoda, not only with the 
males of Octopus and Eledone, but also with Hectocotylus.© 
§ 258. 
The Ovary, always simple, is situated, at the base of the sac of the 
mantle, in a solid envelope (ovarian capsule) of a round or oblong form, 
and derived from the peritoneum. At its circumscribed point the proper 
ovary commences as a multi-lobulated body filling its cavity.” The eggs, 
which are developed in the parenchyma of these lobes, appear first as round 
prominences ; they gradually increase, and, finally, are attached to the ovary 
only by asmall peduncle. At this epoch the ovary furnishes them with a thin 
envelope (egg-capsule), through which, in the mature eggs, the reticulated 
folds of the vitelline membrane can be seen.” When the eggs are fully 
matured, their capsules burst, and they fall into the ovarian capsule, after 
which, their proper capsules fade and finally disappear. From the ovarian 
-capsule they pass into the oviduct through an infundibuliform opening ; but, 
beside this opening, some Octopoda have also two others belonging to an 
aquiferous canal, and which, perhaps, play an important part in the fecunda- 
tion of the eggs.” The oviduct is simple, or double, and extends directly 
in front opening at the base of the funnel near the rectum. With Argo- 
nauta, and Tremoctopus, alone, the two female genital orifices are situated, 
1 See Kolliker, Entwickelungsgesch. &c. p. 1,9, 
Taf. I. fig. 9-12. These longitudinal and transverse 
folds have been observed in the eggs of Sepia and 
Sepiola ; the longitudinal only are found in those 
of Argonauta, Tremoctopus, Octopus, Eledone, 
c. 
2See my Beitrage z. Naturgeschichte d. wir- 
bell. Thiere, in the Neuesten Schrift. d. naturforsch. 
Geselisch. in Danzig. III. 1839, Hft. II. p. 54, Taf. 
Il. fig. 47 (Loligo) ; Miine Edwards, Ann. d. Sc. 
Nat. XVIII. 1842, p. 337, Pl. XII. fig. 6, Pl. XIII. 
fig. 7 (Loligo and Sepia), and Peters, in Miller’s 
Arch. 1842, p. 334, Taf. XVI. fig. 14 (Sepiola). 
It is easy to observe the development of the 
spermatic particles in the testicles. According to 
my observations, the daughter-cells in the mother- 
cells, are developed into as many spermatic parti- 
cles the tails of which rupture one of the thin sides 
of the mother-cell. 
8 Milne Edwards (loc. cit. Pl. XIII. fig. 11, Pl. 
XIV. fig. 5), has erroneously figured the spermatic 
particles of Octopus and Eledone with a very 
large body ; for it is only a small button-like en- 
largement; see Valentin, Repert. 1837, p. 140, 
and Philippi, in Muller's Arch. 1839, p. 308, Taf. 
XV. fig. 11. This last has represented the tail of 
that of Eledone too short. : 
I have found the spermatic particles of Hecto- 
cotylus tremoctopodis to he exactly like those of 
Eledone. 
1 Cuvier, Mém. p. 31, Pl. IV. fig. 6, a. b., Van 
Beneden, loc. cit. Pl. V. fig. 2,a.; Delle Chiaje, 
Descriz. Tay. XIV.-XVI., and Grant, Trans. of the 
Zool. Soc. I. Pl. II. fig. 9 (Octopus, Argonauta, 
Eledone, Loligo, and Loligopsis). 
2 Delle Chiaje, Descriz. Tav. XV. fig. 15, and 
Kalliker, Entwick. &c. Taf. I. fig. 9 (Sepia) = 
Carus, Erlauterungstaf. Hft. V. Taf. IL. fig. 9 
(Eledone). 
8 With Sepia, the dehiscence produces a rent with 
irregular borders (Kédliker, loc. cit. p. 13); with 
Rossia, and Sepiola, a simple round opening. 
which, with Nautilus, according to a figure of 
Owen's, has crenulate borders, and, according to 
Delle Chiaje, is regularly denticulated with EKle- 
done ; see Grant, Transact. loc. cit. I. p. 84, Pl. 
XI. fig. 12, and Owen, Ibid. II. Pl. XXT. fig. 18, 
also, On the Nautilus, p. 42, Pl. VIII. fig. 9, c. ¢., 
or Isis, p. 85, Taf. III. or Ann. d. 8c. Nat. p. 142, 
Pl. IV. fig. 9, c. c., and Delle Chiaje, loc. cit. Tav. 
LV. (8) fig. 15. 
4 These two aquiferous canals form a communica- 
tion between the ovarian capsules and the aquifer- 
ous cells surrounding the branchial hearts (§ 250). 
They are found with Octopus, Eledone, and Tre- 
moctopus ; see Krohn, in Miller's Arch. 1839, p. 
357; Keélliker, Entwick. &c. p. 11, and Delle 
ae Descriz. Tay. XV. fig. 1, q. (Tremocto- 
pus). 
