394 Dr. H. Woodward — Cretaceous Canadian Crustacea. 



NoTKS ON THE Genus Lmuparus, A. White, 1847. 



Before proceeding further it seems desirable to say a few word& 

 upon the nomenclature of this genus, which, like the materials 

 illustrating it, has greatly increased and become somewhat com- 

 plicated. 



In 1884 Dr. Whiteaves first called attention to these interesting 

 Palinurids in the Transactions of the Eoyal Society of Canada 

 (vol. ii, sect. 4, pp. 237, 238) under the provisional generic name 

 of Hoploparia (?), with the specific designation of Canadensis for 

 the form then under discussion, obtained from the Cretaceous of 

 Highwood Eiver, a tributary of the Bow Eiver. 



This fossil was again described by Dr. Whiteaves (in 1885) 

 under the name of Hoploparia (?) Canadensis in " Contributions 

 to Canadian PalEeontology," 1885, vol. i, pp. 87-89, where it is 

 figured for the first time (pi. xi). It appears that some time 

 afterwards (1890) Dr. C. Schliiter, of Bonn, stated that the so-called 

 Hoploparia (?) Canadensis was closely allied, if not identical with, 

 his Podocrates Dulmenensis, a name proposed by Becks (without 

 description), but described fully by Dr. .Schliiter in 1862 (in the 

 Zeitsch. der Deutsch. Geol. Gesellsch., xv, pp. 710-716, taf. xii). 

 This genus Podocrates was also adoptea by Fritsch & Kafka in 

 their " Crustacea Bohm. Kreidform.," pp. 20, 21, taf. iii, figs. 1 and 2 

 and text-fig. 44, Prague, 1887. 



In 1895 Dr. J. F. Whiteaves added a new species of Cretaceous 

 Palinurid to the series of Crustaceans already recorded by him from 

 the Cretaceous of Vancouver (Proc. and Trans. Eoy. Soc. Canada, 

 ser. II, vol. i, sect. 4, pp. 132, 133), under the name of Podocrates 

 Vancouverensis, thus accepting and acknowledging the correctness of 

 Dr. Schliiter's earlier determination in 1862. 



Two years later, Dr. A. E. Ortmann described a new species 

 of Palinurid, from the Upper Cretaceous of Dakota, under the 

 generic name of Linuparus, Gray (1847), a monotypic genus con- 

 taining only the single living Japanese species Palinuriis trigonus of 

 De Haan (see De Haan, in Siebold's "Fauna Japonica," Crustacea, 

 1841, p. 157, pis. xxxix and xl). This genus Linuparus,^ attributed 

 to Dr. John Edward Gray ("List of Crustacea in the British 

 Museum," p. 70), as pointed out by the Eev. T. E. E. Stebbing, F.E.S. 

 ("A History of Crustacea," 1893, p. 197), (spelt by him Linuparis), 

 is not Dr. Gray's name, but was given by Adam White in 1847 • 

 " the characters of the new genus being left to be inferred from the 

 known species (as described by De Haan), a very slovenly method 

 of definition which is much to be deprecated" (Stebbing, op. cit.). 



Linuparus Vancouverensis, Whiteaves, sp. (PI. XV, Figs. 1-3.) 



1841. Falinunis trigonus, De Haan, Fauna Jap. Crustacea, p. 157, pis. xxxix, xl. 

 1847. Linuparus trigomcs, White (gen. emend.). List Crustacea Brit Mub., p. 70. 

 1857. Thenops, Bell, Foss. Malacost. Crust., pp. 33, 34, pi. vii : Pal. Soc. 

 Mon., 1867. 



' This name is an anagram on Fabricius's genus Falinunis, from which Linuparus 

 was separated by Adam White, the real author of the "List of Crustacea in the 

 British Museum," 1847. 



