THE NAUTILUS. 



} lapidivagus, denlijer, suligpififer, dismenipus; B. (Scutahis) 

 acholit--!, cotiiticii.i, c< trot yens ; B. (Thuuiii'iftu,- > <!ir/neti; B. (Gloliulus) 

 recognitus ; Berendtia digueti, miriorina; Barbatia mini, dii/inti; 

 1'irnti recognita; Anomya[sic] simplex Mabille; Plicntulu f/ioiidy- 

 /ii/i.i/.i, ostreivaga, Chama parasitica, digueti Rochebrune. The 

 diagnoses are not accompanied by comparisons with known species, 

 nor are figures given ; and the work as a whole, instead of adding 

 to our knowledge of Lower California!) conchology, quite appreciably 

 darkens the subject. There are unquestionably some misidentitiea- 

 tions, or possibly mixture of specimens from other localities, among 

 the marine shells; and numerous typographical errors mar tin- 

 paper. There should be a petition in the litany of all good con- 

 chologists against this sort of dilettante trash. 



DE L'EXISTENCE DU GENRE BERTHEI.IXIA CKOSSE A L'EPOQTE 

 ACTUELLE, par Ph. Dautzenberg (Bull. Soc. Zool. France 1895). 

 In 1875 a peculiar, very small, (.\ijiiilus-\\ke shell was discovered in 

 the Paris Basin Eocene, and named by Crosse Bei-tlielinln elfgaua. 

 It was supposed to be a univalve ; but later another was ton ml. and 

 proved to be a left .valve of the species, which was then transferred 

 to the bis'alve family Acicii/lda. The genus has also been surmised 

 to be an embryonic bivalve, analogous to S!nii*i</eru in < Jastropoda. 

 Now a living representative of Bertltelntin. lias been found, and 

 named by M. Dautzenberg B. Xehlumbergeri, in honor of the dis- 

 coverer. It is less than a millimeter long, white, with spiral beaks 

 like Isocurdla cor ; the interior is not pearly, but mat, si. that (_'nss- 

 manu is probably right in referring Berthelinia to I'ra*inidn' rather 

 than to the pearl oyster group. It was dredged in sand at the island 

 Nossibe, near Madagascar. //. .4. P. 



NOTES AND NEWS. 



DR. WM. H. DAI. i., Honorary Curator of the Department of 

 Mollusks, U. S. Nat. Mus., has returned from a prolonged sojourn in 

 Alaska, where he has been engaged in an examination of the coal 

 resources of the country. 



MUSSELS IN A CITY RESERVIOR. During the cleaning of the 

 East Park Reservoir, 33d St. and Columbia Avenue, Philadelphia, 

 Mr. J. E. Ives observed numerous Unio eomplanatus in the muddy 

 sediment in course of removal. Specimens presented to the Academy 

 of Natural Sciences by him are well-grown and normal. The water 



