REPORT OF NATIONAL MUSEUM, L907. 



117 



Bassler, Ray S. — Continued. 



western New York. 48 genera and 80 

 species, of which .".<> forms are new, 

 being described. The work is, there- 

 fore, monographic in its scope. The 

 siinly of this fauna brought out the 

 fad that the Rochester shales of 

 tlie New York province are equivalent 

 to the Osgood beds along the western 

 side of the Cincinnati axis, thus cor- 

 recting former correlations. Further 

 correlations were made with the Si- 

 lurian of Europe, and the stratigraphy 

 of these various regions was discussed. 



Bbitton, Elizabeth Gertrude, and 

 Hollick, Arthur. American fossil 

 mosses, with description of a new 

 species from Florissant, Colo. 



Bull. Tun: a Hot. club, xxxiv, 

 1907, pp. 139-142, pi. ix. 

 One of the specimens upon which 

 this paper is based is the Museum spe- 

 cimen of // ypnum haydenii. 



Dall, William Healy. [Letter on 



sonic fossil Volutidae.] 



Nautilus, xx. No. 1_. Apr. 1907, 

 pp. I4i>-14:{. 

 This letter discusses some points 

 raised in regard to these fossils by 

 Mr. Burnetl Smith, especially as to 

 the relations of the genus Athleta 

 Conrad, as illustrated by the Mu- 

 seum series. 



Notes c>n sonic Upper Creta- 

 ceous Volutidae, with descriptions of 



new species and a revision of the 

 groups to which they belong. 



Smithsonian Misc. colls., l, Quar. 

 issue, pt. I. No. 1704, Mar., 

 1007 ; pp. 1-23, tigs. 1-13. 

 This paper comprises a general re- 

 view of the Volutidse represented by 

 the genus Volutoderma and its allies 

 in the upper Cretaceous of various 

 countries, and their later analogues. 

 The new genera Retipirula, Liomelon, 

 and Miopleiona, and the new sections 

 of Volutoderma, Rostt Hindu . Rostellaca, 

 and Rostellanu are proposed. The fol- 

 lowing specific names are proposed for 

 the final time: Volutoderma stolicz- 

 kana, V. excavata, V. tenua, V. media, 

 and V. teinostoma, from India : V. holz- 

 apfeli, from Aachen : and V. protracta 

 from the United States: Volutomorpha 

 retifera, V. dumasensis, V. aspera, V. 

 turrieula, and V. lioica from the 

 1'uited States: new names are given 

 to previously described forms as fol- 

 lows: Volutoderma mulleri from Go- 

 sau ; V. plicatula and constricta from 



Dall, William IIealy — Continued. 



Colorado: V. californica and I'. suri- 

 iiiiii from the Pacific coast. Voluto- 

 derma texana Conrad and Psilocochlis 

 WcCallei Dall, are figured for the first 

 time, the latter from the Eocene of 

 Georgia : and Miopleiona oregonensis 

 from the Tertiary of the Pacific coast 

 is described. Types are in the Na- 

 tional Museum collection. 



Gidley James Williams. Evidence 

 bearing on tooth-cusp development. 



Proc. Wash. Acad. Sci., viii, July 

 10, 100(>. pp. 01-1 lo. pis. iv-v. 

 A discussion of the development of 

 the cusps on the teeth of mammals 

 with special reference (o the tritu- 

 berculate theory. It deals largely 

 with extinct mammals, but consider- 

 able reference is made to living 

 forms. Figures 1-8 on plate iv are 

 made from specimens in the Division 

 of Mammals. 



- A new horned rodent from the 

 .Miocene of Kansas. 



/'roc U. 8. Nat. Mas., xxxii. No. 

 1554, .Tune 29, 1007. pp. 627 

 <;::c,. pis. i.viii --i.xv, fig. 1. 

 Description of a new genus and spe- 

 cies of fossil horned rodent. Epigautus 

 hatchcri. A few comparisons in the 

 based on specimens in the 

 of the Division of Mam- 

 well as the illustration of 

 of Aplodontia, tig. 2. plate 



paper are 



collection 



ma Is. as 

 the 



I.X. 



skull 



A new genus of horse from the 



Mascal] beds, with notes on a small 

 collection of equine teeth in the Uni- 

 versity of ( 'alifornia. 



Hull. Am. Mus. Nat. Hist., xxn, 

 ait. SI. 1906, lip. 385-388, figs. 



A-B. 



A new genus of horse is described. 

 On. more, Ciiari.es W. Notes on a 

 newly mounted skeleton id' a fos- 

 sil mammal (Merycoidodon). 



I'ror. U. 8. Nat. Mus., xxxi. No. 



140L', Oct. s, 1907, pp- 513- 



.".14. pi. xii. 



Gives a brief account of the first 



restoration of Merycoidodon gracilis. 



The type of the Jurassic reptile 



Uorosaurus agilis. Redescribed with 

 a note on Camptosaurus. 



I'ror. I . s. \at. Mus.. xxxii. No. 



1519, Feb. 0, 1007, pp. 151-165, 



pis. xn -xiii, tigs. 1-0. 



A detailed description of the type 



is given. The presence of a second 



