MOLLUSCA. 269 
(auct.). Zeitsclir. fiir wiss. Zool. xv. pp. 86-93, pi. 6. figs. 
14-16. 
The chief peculiarity of the sexual apparatus is, that the 
sperma, after having arrived in the spermatic furrow as in other 
Opisthobran cilia and Prosobranchia, does not continue its way 
on the outside of the penis, but reenters at the end of the fur- 
row into a channel conducting it to the penis. By this organ- 
ization, as well as by the situation of the heart, Peronia approxi- 
mates to the Opisthobranchia and is removed from Vaginula. 
The author demurs to the respiratory function of the dorsal 
processes. The synonymy of the species is as follows : — Onchu 
dium peronii (Cuv.) = mauritiana (Blainv.), from Mau- 
ritius; Onchidimnverruculatum {CuY.j Descript. Egypt.) == 
peronii (Audouin, Ehrenberg, Blainville), from the Red Sea, 
Java, Japan. 
Vaginulida? (Veronicellida;). 
Keferstein, W. Anatomische Untersuchung von Veronicella 
\yaginulus\ bleekerii, n. sp. Zeitschr. fiir wissensch. Zool. 
XV, pp. 118-126, pi. 9. 
Vaginula lleeheri, sp. n., p. 125, from .Java. — The lungs (respiratory 
cavity) are formed by a channel three-fourths as long as the body, and 
situated on the right side of the back near the intestine ; the orifice of the 
hormaphrodilic glandulai and their annexa is situated on the lower surface 
of the body, near its hinder end ; a vas deferens conducting the sperma 
from the hermaphroditic glandule to the penis (which is situated near the 
right tentacle) appears to exist, although the author could not follow its 
entire course. The whole organization proves a close affinity of this species 
to the Limacidce. 
Janellida;. 
Keferstein, W. Ueber die zweitentakeligen Landscbnecken 
Janella, Aneitea, Triboniophorus. Zeitsclir. fiir wiss. Zool. 
XV. pp. 76-85, tab. vi. figs. 1-13. 
An historical and anatomical account of the family Janellida is 
followed by systematic diagnoses of the three genera mentioned : 
they have rudimentary shells and a median prominence on the 
maxilla, like lAmax and Vitrina. 
The species known are enumerated, and two described as 
new — Triboniophorus schuttei and T. krefftiiy p. 85, from Sydney. 
. Ueber die Anatomie der Janella bitentaculata (Q. et G.) 
von Neuseeland. Ibid. pp. 447-450, pi. 34. 
LiMACIDiE. 
Pallifera, Morse, Journ. Portland Soc. Nat. Hist. i. p. 8, is a new genus 
founded upon Tehennophorus dorsalis (Binney), and distinguished frCm 
Tehennopliorus — Philo7nycus'] by the buccal plate being strongly ribbed as 
