430 REPORT ON ZOOLOGY, MDCCCXLIV. 



TECTIBRANCHJA. 



Loven figures (ib.) the young states of Lacuna vincta, Eulima disiorta, 

 Bulla truncata, and Bullcea aperta, which come very near to the young 

 states of the Nudibrauchia first described by Sars, as they possess the two 

 ciliated oral lobes. This is of importance as regards the systematic position 

 of the genera. 



Sulla Cedllii, Philippi (Meuke Zeitschr. p. 164). Cylindrical, white, 

 columella depressed-conical; 5?". China. B '. vestita, Philippi (Eiium. 

 p. 95), brown, covered with white reticulations. 



1'rom Bullcea planciana Philippi (Eiium.) distinguishes a species from the 

 Cape, B. Schroeteri, which is well figured in Schroeter's Eiuleitung, &c. 

 vol. i, t, 1, f. 8. 



Aplysia lepus, Philippi (Enuin. p. 99), probably a variety of Apl. fasciata, 

 Poiret. 



INFEROBRANCHIA. 



Pleurobranchus perforates, Philippi (Euurn. p, 87.) The mantle deeply 

 emarginate anteriorly. P. brevifrons (ib.) Foot longer than the mantle, 

 shell large. 



Patella insessa (Ann. x, p. 82), from California, is figured in Hinds. 

 (Voyage of Sulphur.) 



Also Patelloida dejncla (Ann. p. 82). Chiton pulehellus, Philippi (Euum. 

 p. 83). Ch. magdalenensis, from Cak'foruia. BLiuds. (Voyage of Sulphur.) 



PULMONATA. 



T. F. G. Sclilemm has written a dissertation De Hepate 

 ac bile Crustaceorum et Molluscorum quorundam; Bero- 

 lini 1844. 4to, in which the liver of Helix pomatia and Limax 

 ater is investigated physiologically, anatomically, and che- 

 mically. Another dissertation appeared at the same time, 

 by Jacob Frank : De Hepate Molluscorum, in which what 

 was already known respecting the liver of many Molluscs is 

 collected, and the liver of Helix nemoralis described from 

 the author's own observations. 



Pfeiffer has offered, in Menke's Zeitschrift, p. 177, criti- 

 cal remarks upon certain groups of the Helicea3, in which, in 

 the first place, the group allied to Helix rapa is considered, 

 next to which stand, a new species, H. Mulleri, Pfr., H. 

 Lamarckiana, Lea, H. stolephora, Val., H. Zeus, Jonas, and 



