240 NILS HJ. ODHNER 
No jaw is, however, present, and the genital organs (fig. 15) are different, thus 
justifying a reference to distinct genera. They are situated likewise totally above 
the retractor of the right tentacle, but the penis is reduced to a small papilla 
close within the genital opening; at this papilla is inserted a fine retractor muscle, 
and here the vas deferens debouches. The function of a penis has been over- 
taken by a very long appendix extending from the genital orifice about one 
whorl backwards. The appendix is equally cylindric throughout; its walls are 
muscular, and it includes a muscular cord acting as an evertible penis. At the 
hind fourth of the appendix a thin retractor is attached which further back joins 
that from the penial papilla; at its hindmost end this retractor inserts the 
diaphragma. The vas deferens runs backwards at the inside of the oviduct. 
In the female part we find a very short vagina. At the point where it 
passes into the oviduct a very long duct leads upwards to the spermatheca. 
The oviduct is very wide; in one individual it contained 6 eggs, in another 6 
embryoes, the most advanced ones with a shell containing 27/2 whorls. 
Where male and female canals join backwards, an irregular ampulla-shaped 
sac is formed which carries on each side a short prostata gland, and on its 
hindmost side a well-developed albuminiparous gland. Further, from this sac 
issues backwards the hermaphrodite duct, and forwards a peculiar lengthened 
vesicula seminalis, which descends close to the columellar muscle, and has a 
structure like that of the penial appendix, thus having muscular walls. The distal 
end of this vesicula seminalis is peculiarly fixed to the muscle: at the inner 
(axial) side of the muscle this attachment causes a small pit, and an invagina- 
tion in the shape of a solid stopper enters, to a short extent, into the interior 
of the vesicula end. This stopper has, however, no opening leading to the 
exterior, and thus the vesicula is entirely closed. That it represents a vesicula 
seminalis is likely from facts mentioned by treatening Fernandesia bulimordes. 
The hermaphrodite duct is of a general winding shape with a median 
dilatation, and the gonad consists of a small number of separate lobes. 
ZT. plicosa shares the organization of 7. dz/amellata, but the vesicula semi- 
nalis is longer, so that its upper portion is bent into a coil. 
Nervous system and bulbus pharyngeus have the same shape as in Fer- 
nandesia. 
Fernandezia Pilsbry 1911. 
This genus, established by PILSBRY exclusively on the shell characters, 
and with respect to its remote geographical occurrence, was included by its 
author provisionally in the fam. Ammastridae, characterized by its achatinoid, 
not achatinelloid, radula. The soft anatomy and the radula were unknown to 
PILSBRY, but the material collected by the Swedish expedition contained spe- 
cimens adapted to examination, and this gives the result that the radula, as 
well as the soft anatomy, very closely resembles that of Zornate/lina, and that 
the genus is to be included in the fam. Tornatellinidae. The generic distinc- 
tion seems well motived, since in /ermandezza the penial appendix bears an 
accessory sac and the shell lacks all lamellae, even in the nepionic stage, which 
was examined in /’. dulimotdes (fig. 18,72) and cylindrella (fig. 18, 2). Thus 
