424 



with that species, the author overlooks Milne Edwards' statement 

 in the same paragraph that L. sagittaria Edwards and Lucas is 

 a distinct species for which the name moclesta is proposed. Actma 

 spinifera (sp. nov.) appears to be A. acantha A. Milne Edwards, 

 which has been well figured twice; and if not Milne Edwards' 

 species it should have been compared with it rather than with A. 

 hirsutissima. Eupilumnus Websteri (gen. et sp. nov.), figured 

 and very briefly described from a single specimen wanting the 

 chelipeds, is evidently not very closely allied to Pilumnus and is 

 apparently based on a young specimen of Domacea hispida, which 

 had already been reported from the Florida reefs by Stimpson. 

 Moreover, the name Eupilumnus is preoccupied, having been used 

 (according to the Zoological Record for 1877) by Kossmann for 

 a division of the old genus Pihimniis. In attempting, in a foot- 

 note on p. 405, to " straighten the synonymy of two species of 

 Petrolisthes" the confusion in the synonymy of one of the species 

 is increased. Petrolisthes Helleri is proposed for Porcellana Dance 

 Heller (non Gibbes), regarded by Heller as the same as Porcel. 

 armata Dana (non Gibbes). Dana, however, discovered that 

 his name armata was preoccupied and, in the appendix to his 

 great work, p. 1593, and in the explanation to the plates, substi- 

 tuted spinuligera for his species, though this has been overlooked 

 by Stimpson and Heller as well as by Kingsley. The reason for 

 the reference of the species to Petrolisthes is not apparent, for 

 Stimpson retained Dana's species in the restricted genus Porcel- 

 lana and, at least, it has no appearance of being a Petrolisthes. 



Under Caridea there is a useful revision of the genera of Cran- 

 gonidse, Atyidse, and Palaemonidse, though one is occasionally left 

 in doubt as to the limits of the genera adopted; as in the case of 

 the first genus, Cra9ig on, which is said to include Steiracrangon 

 Kinahan, while no mention whatever is made of the same author's 

 Cheraphilus, which has recently been adopted by G. O. Sars and 

 by Miers. A peculiar misuse of " ibid.", which the proof-reader 

 ought to have corrected, might be overlooked did it not recur so 

 persistently in nearly all of Mr. Kingsley's papers, s. i. smith. 



5. The Crayfish: an Introduction to the Study of Zoology y 

 by T. H. Huxley. 371 pp. 8vo. New York, 1880 (D. Appleton 

 & Co.) — This last volume of the International Scientific Series is 

 far more interesting than ordinary text-books of zoology and well- 

 deserving of careful study. Though it treats specially of the natural 

 history, physiology, morphology, comparative morphology, dis- 

 tribution, and origin of crayfishes, it admirably fulfills the author's 

 desire, as expressed in the preface, " to show how the careful study 

 of one of the commonest and most insignificant of animals, leads 

 us, step by step, from every-day knowledge to the widest general- 

 izations and the most difficult problems of zoology." A large 

 part of the excellent wood-cut illustrations are new, and many are 

 unusually beautiful for a work of this class. The figures (after 

 Bate) on page 282, are of Carcinus mamas, not Cancer pagun/s 

 as labeled. s. i. smith. 



