32 Moll 
MOLLUSCA. 
Dr. Norman has issued a catalogue of the Marine Mollusca in his 
collection. 
Sale Catalogue ; MacarA 
Tryon’s “ Manual” is being continued by Pilsbry. A volume of each 
series has been issued. 
Paetel’s Catalogue is being continued, the first volume being now 
complete. 
An abstract is given of a rare work on Conchology by de la Pylaie ; 
Fischer (4). 
General text-book, treating of Mollusca inter alia ; Rolleston & 
Jackson. See also Vayssiere ; Graber (1). 
A handy elementary text-book for the western part of the United 
States is issued by Keep. 
Biographies of most American conchologists ; Dale (5). 
Notice of the writings of G. B. Adami ; Cermenati. 
Bibliographical notes ; Meyer. 
ANATOMY AND PHYSIOLOGY. 
In Chiroteuthis veranyi the funnel has a valve. There are olfactory 
organs ; there are two renal papillae, but the renal sac is unpaired ; it has 
an anterior, but no dorsal division. Two viscero-pericardial apertures are 
present. The generative organs have two oviducts, and accessory nida- 
mental glands. In Doratopsis vermicularis there are olfactory organs, 
behind the eye ; and “ stellate ” organs of unknown function in the 
thickened neck. The funnel has a valve. In many points the animal 
resembles Chiroteuthis. Histioteuthis ruppelii has no lachrymal sinus ; the 
neck has longitudinal ridges. The siphon has a valve. There are two 
renal papillae, two oviducts, and nidamental glands. The genus has many 
resemblances to Thysanoteuthis. In Verania the olfactory organ is a small 
patch behind the eye ; W eiss. 
The anatomy of the various genera of Pteropoda fully described : the 
rotation described by Boas in one group of the Thecosomata is maintained 
and supported by further arguments. Peraclis is regarded as the most 
archaic of this division. The Thecosomata have two, the Gymnosomata 
four cephalic tentacles. In the latter there is no mantle ; Pelseneer (2). 
See also Grobben (2) ; Ihering. 
The anatomy of the new genus, Estria [c/. Zool. Rec. xxiv, Moll . 
p. 56] is described in detail, with the result that it forms a transition 
from Urocyclus, in which the visceral cone extends the whole length of 
the foot, to Helicarion , where this has diminished, and Parmarion and 
Mariella , where it has entirely disappeared, the foot no longer presenting 
a cavity ; Poirier. 
The physiology of Helix pomatia has been examined, as to its hiberna- 
tion ; its power of withstanding heat, cold, submersion, and poisons; the 
functions of the various parts of the digestive tract and their secretions; 
the effects of injury to different parts of the nervous system ; and the 
phenomeua of circulation under varying conditions ; Yung. 
