34 CURRENT LITERATURE. 



author states, go by names to which they have no sufficient claim, and it is 

 surprising how unhke things have been lumped together. 



In the present revision the following families are included : thcTliyasiriciac 

 (with 35 species), the Diplodontidac (with 20 species), the Liicinidae (with 63 

 species), the Corbidac (Exotic .' — Eastern Tertiaries), and the Cyreuellidac (with 

 2 species) ; 81 of these 120 species belong to the Atlantic, 45 to the Pacific, and 

 5 — or possibly 6 — are common to the two sides of the American continent. 



Many new species are figured and described, and numerous changes have 

 been made in the nomenclature. 



Hallt T. S. — Growth stages in modern Trigonias, belonging to the section 

 Pectinatae. Proc. R. Soc. Victoria, 1901, vol. xiv., pp. 17 — 21, fig. 



Steinach, E. — Studien tlber die Hautfiirbung und fiber den Farbenwechsel 

 Cephalopoden. Nebst Ver suchen fiber die autogene Rhythmicitiit der 

 Chromatophoren-Muskeln. Arch. ges. Phiysiol., 1901, Bd. 87, pp. i — 37,T. 



Rottmann, G. — Ueber die Embryonalentwicklung der Radula bei den Moll- 

 usken. Theil i. Die Entwicklung der Radula bei den Cephalopoden. 

 Zeit. f. wiss. Zool., 1901, Bd. Ixx., pp. 236 — 262, Tfn. .\i-xii. 



SimrOth, H. — I'ber das Problem frfiheren Landzusammenhangs auf der 

 siidlichen Erdhalfte. Geograph. Zeitsch., 1901, pp. 665 — 676, T. v. 



Meek, A. — The Mussel Experiment on the Coquet. Rpt. Xorthumberland 

 Sea Fish Comm., 1901, pp. 35, 36. 



LebOUr, Marie V. — The Marine Mollusca of Northumberland. Ibid., 

 PP- 49 -53- 



Tobler, Max. — Zur anatomie von PaniiopJionis iiihriiicdiiis, Reeve. Jena. 

 Zeit., 1901, Bd. xxxvi., pp. 229 — 274, Tafn. xiii — xv. 



Kennard, A. S. and Woodward, B. B— Further notes on the British 

 Pliocene non-marine Mollusca. Proc. Malac. Soc. Lond., J901, vol. iv., p. 

 183. 



EDITOR'S NOTES. 



Only quite recently have we learnt of Ihe death (if Carl Arend P'riedrich 

 ■Wiegmann of Jena, which took place on November 7th, 1901. His decease 

 robs us of a valued correspondent, and malacology of a patient, diligent, and 

 gifted worker. 



We should like to renfind those Subsciibers who have not yet sent us their 

 suliscriptions for volumes 7 and 8, that they are considerably over due. It 

 would greatly assist us if all subscribers would forward their subscriptions at 

 the commencement of each year. 



