PALÈOZOOLOGrE ET PALÉOPHYTOLOGIE 167 



Baker, Frank-Collins, The value of Ecology in the interprétation of 

 fossil Faunas. School. Se. a. math., vol. XXI — 1921 — (Univ. of Illinois), 

 pp. olo-oli . 



Chicago fournit un exemple suggestif de la valeur de l'Ecologie dans l'inter- 

 prétation des fossiles. Il existait au Nord de la Cité un lac glaciaire, prédé- 

 cesseur du lac Michigan ; les couches stratifiées contiennent des restes attes- 

 tant la vie animale à l'époque en question ; seulement il faut interpréter les 

 mouvements de régression qui se sont produits par le retrait des glaces 

 jusqu'à ce qu'une période favorahle à la vie se soit manifestée. 



Thomson, J.-Aïlan, The Notocene Geology of the Middle Waipara 

 ano Wekà Pass District, North Canterrury, New Zealand. Trans. 

 N. Z. Insi., vol. LU — 1919 — pp. 322-415, 12 pi. — 1920. 



In a section on descriptive palseontology Thomson brings forward two 

 necessary altérations of nomenclature ai'fecting New Zealand molluscs. 

 He also describes a large number of Brachiopods ; amongst them he founds 

 a new genus Waiparia (Génotype, Paehymayas abiiormis), and séparâtes 

 al least Iwentyfive new species, ten belonging to the genus Pachymagas 

 IheR., and twelve tô the genus Rhizothyris Thomson. In addition be makes 

 several altérations in the nomenclature of previously described brachiopod 

 species. 



John-A. Bartrum. 



Dali, W.-H., Changes in and additions to molluscan nomenclature. 

 Proc. Biol. Soc. of Wash.. vol. 31. pp. 137-138. — Washington, 1918. 



In a paper ready for the printer, but which may be considerably delayed 

 in publication, the following changes in nomenclature occur, which it is 

 thought best to publish at the présent lime. 



Troniina new genus, type Fusus nnicarinalus Philippi, from the Magellanic 

 area. 



Neplunea Bolten. I showed in 1902 lhat after deducting properly proposed 

 gênera from the heterogeneous assembly included under this name by Bolten, 

 the remaining portion which would keep the name was typified by Trophon 

 clathratus upon which G. 0. Sars later founded his genus Boreoirophon. 



The genus Lillorina typified by T. liitoralis beside the typical section is 

 divisible as follows : Section Alcjaroda Dali, type L. lillorea L. ; Section 

 Liltorivaga Dali, type L. sîtehana Philippi ; and the following subgenera : 

 Melaraphe (Muhlfeldf) Menke, 1828, type L. neriloides L. ; and subgenus 

 Alyamorda Dali, type L. neweombiana Hemphill. 



Boetiea new genus, is proposed for B. vaginata Dali, a small shell resem- 

 bling conchologically a very solid Lactiha but with a sulcus at the posterior 

 commissure of the aperture and one like thaï of Trichotropi's anteriorly ; 

 the surface smooth, but the operculum unknown. Habitat : San Diego, 

 Cal., in 199 fathoms. 



Isapis Adams, 1853, being preoccupied by Westwood in 1851, Iselica is 

 proposed as a substitute. 



