120 



REPORT OF NATIONAL MUSEUM, 1905. 



WHITE, Chari,es A.— Continued. 



In this article the origin of the UnionidiE is 

 traced and an explanation for their distribu- 

 tion is given. The paper is illustrated by G 

 plates, the originals of the figures lieing the 

 property of the U. S. National Museum. 

 Unio stantoni, new species, of the Laramie 

 Group, is proposed for a specimen formerly 

 referred to Unio danx Meek and Ilayden. 



CRUSTACEANS. 



DALL, William H. Harriman Alaska Ex- 

 pedition. Crustacea, volume x. 



Science (new series), xx, No. 510, Oct. 7, 

 1904, p. 463. 

 Notice of the volume, including some ac- 

 cour.i; of its contents. 



RATHBUN, Mary J. Descriptions of three 

 new species of American crabs. 



Proc. Biol. Soc. Wash., xvii, Dec. 27, 1904, 

 pp. 161,102. 

 Three new species of crabs from Central 

 America and Chile in the collection of the 

 Zoological Museum at Copenhagen are de- 

 scribed — Uca (trstedi, Pinnaxodes meinerti, 

 Lophopanopeus nicaraguensis. 



A cotype of the first-named species is in the 

 U. S. National Museum. 



Some changes in crustacean no- 

 menclature. 



Proc. Biol. Soc. Wash., xvii, Dec. 27, 1904, 

 pp. 169-172. 

 These changes are necessitated by the dis- 

 covery that several genera of Weber's "No- 

 menclator entomologicus." 1795, have been 

 ignored by subsequent authors. Alpheuis 

 Weber and Ligia Weber are synonyms of 

 Cancer Linnasus; Crangon Weber takes pre- 

 cedence of Alpheus Fabricius; Homarus Weber 

 may be used in its present sense, for the lob- 

 sters; Parthenope Weber is equivalent to the 

 later Lambrus of Leach; Daldorfia is proposed 

 as a new generic name for Parthenope Fabri- 

 cius; Euryala Weber= Corystes Latreille 1802; 

 Idotea Weber is a synonym of Emerita Grono- 

 vius. 



Les Crabes d'Eau douce (Pota- 



monidse). V par tie. 



Nouv. Arch. Mus. d'Hist. Nat., Paris, (4) 



VI, Dec, 1904, pp. 225-312, pis. 9-18, text 



figs. 1-37. 



A monographic account of the Potamonidae, 



based chiefly on the collection in the Museum 



at Paris, but embracing also those in 8 other 



large museums. 



Gives first some general consid:..tions on 

 the systematic position of the family , notes on 

 the development, ethology, uses, etc., with a 

 table of distribution. 



The descriptive part deals with the 77 species 

 of typical Potamon of which 29 are new: the 

 plates, however, represent also the subgenera 



RATHBUN, Mary J.— Continued. 



Potamonautes, Geothelphusa, Perithelphusa 

 and a portion of Parathclphusa , including 

 many undescribed forms. 



Why not Paramaya? 



Proc. Biol. Soc. Wash., xvill, Feb. 21 , 1905, 

 p. 73. 

 A plea for the use of a "plate name," Para- 

 maya de llaan 1837, instead of Mamuiu Stel)- 

 bing 1<)04. 



RICHARDSON, Harriet. A reply to cer- 

 tain criticisms of Professor Giard respect- 

 ing the Bopyrids. 



Comptcs Rendus Soc. Biol. Paris, lvi. No. 



19, June 3, 1904, pp. 856-858; Science 



(new series), XX, No. 497, July8, 1904 pp. 



51-53. 



A reply to critical review by Prof. Alfred 



Giard in Comptes Rendus Societe de Biologic, 



LVI, Apr. 22, 1904, pp. 591-594. 



Further changes in crustacean 



nomenclature. 



Proc. Biol. Soc. Wa.^h., xviii, ,lan. 20, If)05, 

 pp. 9, 10. 

 Proposes Idothea Fabricius 1776 for Idotea 

 Fabricius 1798 and Ligyda Raflnesque 1815 for 

 Ligia Fabricius 1798, the Fabrician genera 

 having been .shown to be invalid by Miss 

 Rathbun in a previous number of the Proceed- 

 ings of the Biological Society of Washington. 



Isopods from the /Ylaska salmon 



investigation. 



Bull. Bureau Fisheries, xxiv, 1904, pp. 209- 

 221, text figs. 1-10. (Feb. 18, 1905.) 

 Fourteen species are enumerated, four of 

 which are new, one, Holophryxus alaskensis, 

 representing a new genus. Figures are given 

 not only of the new forms but of Rocineta 

 belliceps (Stimpson), R. angustata Richard- 

 son, and of the first incubatory lamella and 

 the sixth leg of various specimens of Bopy- 

 roides hippolytcs. 



■ Descriptions of a new genus of iso- 



poda belonging to the family Tanaidte 

 and of a new species of Tanais, both from 

 Monterey Bay, California. 



Proc. U. S. Nat. Mus., xxviii. No. 1400, 

 May 9, 1905, pp. ."i67-370, text figs. 1-13. 

 Pancolus, a new genus, and P. californiensis 

 and Tanais normani, new species, were col- 

 lected at Monterey Bay by Dr. Harold Heath. 



WILSON, Charles Branch. Contribu- 

 tions from the Biological Laboratory of 

 the Bureau of Fisheries at Woods Hole, 

 Mass. The fish parasites of the genus 

 Argulus found in the Woods Hole region. 

 Bull. Bureau Fisheries, XXIV, 190i pp. 115- 

 131, 31 text figs. (Feb. 14, 1905.) 



