BIBLIOGRAPHY. 



138 



DALL, William IIraley — Continued. 



On the proposed University of the 



United States and its possible relations 

 to the scientific bureaus of the Govern- 

 ment. 



Am. NatumUM, xxiii, No. 386, Feb., 1899, 

 pp. 97-107. 

 This cssiiy discusses the practical methods 

 by which the opportunities offered by the 

 scientific bureaus of the Government could 

 be utilized for the instruction of students, 

 and points out the difficulties in the realiza- 

 tion of any plan in which the presence of the 

 .students in those laboratories forms a part. 

 Although this is a feature of most of the propo- 

 sitions for a National University, on the prac- 

 ticability of which the success of those pro- 

 jects depends absolutely, it has been almost 

 universally ignored by those persons who 

 have endeavored to promote*the establish- 

 ment of such a university. 



On a new species of Drillia from 



California. 



Xautilus, XII, No. 11, Mar., 1899, p. 127. 

 A new species of Drillin, collected by Mr. 

 and Mrs. T. S. Oldroyd, off San Pedro, Cal., 

 is described under the name of Drillia empy- 

 rosia. 



A new Pteronolus from California. 



Nautilus, XII, No. 12, Apr., 1899, pp. 138, 139. 

 This note describes Pteronotus carpenteri, 

 obtained from several localities on the coast 

 of California. 



How long a whale may carry a har- 

 poon. 



Nat. Gcograph. Mag., x. No. 4. Apr., 1899, 

 pp. 136, 137. 

 This paper gives some data in relation to a 

 harpoon deposited in the National Museum by 

 the National Geographic Society, and found 

 in a whale taken in Bering Sea in August, 1890, 

 which it appears must have been carried in 

 the animal's body for thirty-six years. 



The Calaveras skull. 



Proc. Acad. Nat. ScL. Phila., Apr., 1899, 

 pp. 2-4. 

 This note places on record the observations 

 of witnesses in regard to this skull, about 

 which so much controversy has gathered and 

 in regard to which, recently, some new ex- 

 pressions of incredulity have been published. 



Synopsis of the American species of 



the family Diplodontidse. 



Journ. Conchology, ix, No. 8, Oct., 1899, 

 pp. 244-246. 



This synop.sis exhibits the groups into which 

 this family is divided, the genera already de- 

 scribed, and their synonyms. Section i^rfant- 

 eUa, based on Felania uMa Gould, and section 

 Phlyctiderma Ddll, based on Diplodonta semi- 



DALL, William Healey — Continued. 



aupcra I'hil., are described as new; Diplodimta 

 verrilli is proposed as a new name for Diplo- 

 donta turgida Verrill and Smith, not C-'onrad; 

 Diplodonta ticniirugona Dall is proposed as a 

 new name for Diplodonta semiaifpcra of Car- 

 penter, not of Philippi; Diplodonta platcnsis 

 from Argentina is described as new. 



Synopsis of the recent and Tertiary 



Leptonacea of North America and the 

 West Indies. 



Proc. U. S. Nat. Miis., xxi, No. 1177, June 

 29, 1899, pp. 873-897, pis. 87,88. 



This paper gives the results of a revision of 

 the groups belonging to the Leptonacea, a 

 table of the revised classification and lists (A) 

 of the species of the east coast of North Amer- 

 ica; (B) of the west coast of North America, 

 and (C) of the Tertiary American species. 



The genus Galcomma is divided into sec- 

 tions, of which two, Ampliilepida and Para- 

 lepida, are new; Spanioriniis and Scintillorbis 

 are new subgenera of Solecardia Conrad; Vas- 

 coniella is proposed as a new generic name for 

 Vasconia, which is preoccupied. In the Lep- 

 tonidie, Epilepton (subgenus of Lepton) is 

 proposed for Lepton clarkix: Ceratobornia, a 

 section of Bornia, Mancilcellia and Kelliola, 

 sections of Kellia, Serridensand Dicranodesma, 

 subgenera of Tliecodonta, and Pythinclla, sub- 

 genus of Mytidla angas, are new. 



The following new species and varieties are 

 described: Sportella pUsbryi, S. californica, S. 

 stearnsil, Anisodonta corbuloidca, Erycina lin- 

 ella, E. emmonsi, E. periscopiana, E. fernan- 

 dina, E. compressa, Bornia barbadensis, B. 

 retifera, Mysella tnmidula, var. verrilli, Mynella 

 barbadensis, M. aleutica, M. pedroana, Monta- 

 cuta floridana, M. ininuscula, M. limpida, M. 

 percompressa. 



The following new names are applied to 

 species of which the names in use are preoc- 

 cupied or erroneous: Solecardia morchii for S. 

 eburnea Morch, not Conrad. 



The new species are figured, the method in 

 which Pseudopythina attaches itself to Crus- 

 tacea, and the animal of Ceratobornia are 

 illustrated. 



DILLER, J. S. Origin of Paleotrochis. 



Am. Journ. Sci., Vll, May, 1889, pp. 337-342. 

 The author shows that these supposed fos- 

 sils are derived from an ancient eruptive 

 rock. These bodies are of the nature of 

 spherulites and are therefore not organic. 



DYAR, Harrison G. Notes on some 

 Saw-fly larvse, esjiecially the Xyelidse. 

 Canadian Entomologist, XXX, No. 7, July, 

 1898, pp. 173-176. 

 Describes 4 larvae. 



Concerning Xantlwrhoe glacialis 



Hulst. 



Canadian Entomologist, xxx, No. 8, Aug., 

 1898, p. 203. 



