56 



BIBLIOGRAPHY. 



(limited to works received by the society's librarian). 



"Fauna Hawaiiensis: Mollusca." By E. R. Sykes, with intercalations on 



Anatomy by H. H. Godwin-Austen. Vol. 2, pp. 271-412, pi. 11, 12, Cam- 

 bridge, 1900. 



This work, dealing with the non-marine molluscs only, opens with a series of 

 tables, illustrating the distribution of the fauna, and the following conclusions are- 

 drawn : — 



I. — The molluscan fauna is nearly related to that of the Polynesian islands, and 



shows hardly any trace of continental influence, Asiatic or American. 

 2. — The species are nearly always confined to one island ; but it is very doubtful 



whether, as has been stated, " each valley has its peculiar species." 

 3. — When the genera found are confined to the islands, the majority of living 

 species usually occur on Oahu. 



Kauai has 50 species peculiar to it, Oahu 175, Molokai 44, Lanai 25, Maui 64, 

 Hawaii 37. 



A systematic account of the fauna is then given, and includes details of the 

 anatomy of some Helicoid forms, due to Col. Godwin-Austen. The Limacida 

 number 7, Zonitidce 25, Philo7nycidce 2, Endodontida 24, Helicidce 2, Pupidce 10, 

 Achatinellid(E 332, Totnatellinidce 14, Stenogyridce 4, Sziccineidd 27, Linuiceidce 13, 

 MeJaniidd 6, Faludestriti-idce I, Helicinidce 5, Neritidce 5. 



The Achatinellidoe are divided into nine genera : Achatinetla 107, Perdicella 

 8, Newcovibia 9, Amasha loi, Leptachatina 76, Thaamunia i, Carelia 9, Auricu- 

 lella 20, and Frickella i ; some of these genera are also divided into sections. 



The following new genera are described : Godwinia, with type Vitrina caperata 

 Gld. , and PJiilonesia, with X.y^Q Microcystis abeillei Ancey. Amastrella is a new 

 sub-genus of Amastra (type A. riigubsa Pease), and Kaiiaia a new name for Carin- 

 ella, Pfr. nee Sby. 



New species are described of Perdicella, Leptachatina, Toriialellina, Achatin- 

 ella, Auriculella, and Succinea ; all these being figured, as also those described else- 

 where by Mr. Sykes from the same collection. 



The work concludes with a bibliography, list of forms treated as varieties or 

 synonyms, and a further list of species unknown or erroneously recorded. 

 Monograph of the Land and Freshwater Mollusca of the British Isles, by 



J. W. Taylor ; part vii., completing vol. i. 



The seventh and concluding part of the introductory first volume of Mr. Taylor's 

 great work was issued December 31, 1900. Dealing first with the conditions of 

 geographical distribution of terrestrial mollusca, the author passes on to periodicity 

 of species, giving well-known interesting examples. Coloured maps illustrate the 

 approximate routes traversed by the Helicidce, etc., from their probable evolutionary 

 centre and the world distribution of the chief Helicidian families. A very interest- 

 ing comparison of the genital organs of the more or less highly developed Helicidian 

 groups shows that the more elementary and ancient the types, the more widely are 

 those types distributed. After defining the various geographical regions, the posi- 

 tion of the British molluscan fauna is explained at length and illustrated by a coloured 

 map. The geological history of the British Isles is next summarised, and a list of the 

 fossils of each formation appended. The author then proceeds to give an interesting 

 account of the enemies of mollusks and of their parasites. The various uses of mol- 

 lusks, as food, medicine, ornament, money, and augury conclude the text. The part 

 also contains a comprehensive index to the whole volume. The various plates add 

 largely to the interest of the part. 



