146 
ZOOLOGICAL LITERATURE. 
in Fistularia, Aulostoma, Acanthurus, Otolithus, and Hemitri- 
ptei'us, 
Kner, E. Einiges iiber die Thymusdriise bei Fischen und die 
Schwimmblase der Stachelflosser. Sitzgsber. Acad. Wiss. 
Wien, 1864, xlix. May (pp. 455-459) . 
The author remarks that in several fishes which are provided 
with Pori pectorales, the thymus gland is absent, and that the 
air-bladder communicates with the cesophagus by an open duct 
in several Acanthopterygians (Holocentrurrij Priacanthus, Ccesio ) . 
Muller, H. Bemerkungen iiber die Epidermis von Petro^ 
myzon. Wiirzb. ntrwiss. Zeitschr. 1864, v. pp. 43-53. 
[Remarks on the epidermis of Petromyzon,^ 
Ofsjannikof, Ph. Ueber die Inauguraldissertation des Herrn 
Dr. Kutschin das Eiickenmark der Neunaugen betreffend, 
nebst einigen eigenen Beobachtungen iiber das Eiicken- 
mark der Knochenfische und anderer Thiere. Bull. Acad. 
Sc. St. Petersb. vii. 1864 (pp. 137-145). 
[Researches on the spinal marrow of Teleosteous fishes and 
of other animals, with remarks on Dr. Kutschin^s Researches on 
the spinal marrow of the Lamprey.] 
Ofsjannikof, Ph. Ueber die feine Structur des Kleinhirns der 
Fische. Bull. Acad. Sc. St. Petersb. vii. 1864, pp. 157-1 66. 
[On the minute structure of the cerebellum of Fishes.] 
Moreau, A. Sur la voix des poissons. Compt. rend. Acad. Sc. 
Paris, 1864, August 29 (p. 436). 
The interesting observations made by the author refer to 
Trigla hirundoj and will be recorded below. 
Kolliker, a. Weitere Beobachtungen iiber die Wirbel der 
Selachier, insbesondere iiber die Wirbel der Lamnoidei, 
nebst allgemeinen Bemerkungen iiber die Bildung der 
Wirbel der Plagiostomen. Abhandl. Senckenb. Naturf. 
Gesellsch. 1864, v. pp. 51-99, with five plates. 
[Further observations on the vertebrae of Selachians, espe- 
cially on the vertebrae of the Lamnoidei^ with general remarks 
on the formation of the vertebrae of Plagiostomes.] 
Lotz, Th. Ueber den Bau der Schwanzwirbelsaule der Sal- 
moniden, Cyprinoiden, Percoiden und Cataphracten. Sieb. 
u. Kollik. Zeitschr. wiss. Zool. 1864, June 20 (pp. 81-106, 
with four plates) . 
The author has examined the termination of the caudal ver- 
tebral column of the adult state of Salmo solar ^ Salmo fario, 
Thymallus vexillifer, Barbus fluviatilis, Coitus goMo, Gasteros- 
teus acultaiuSy und Perea Jluviatilis ; and having traced the deve- 
