2S [March, 



from the original orthography is furnished by Leach's genus Lupa, but in this 

 case the deviation is unjustifiable. In Leach's article Crustaceology, in the 

 Edinb. Encycl., he uses Lupa throughout, and Desmarest does the same in the 

 Consid. Gen. Crust. Milne Edwards, misled apparently by the orthography of 

 the name in French, Lupee, erroneously uses Lupea in his Hist. Nat. Crust, 

 tom i. p. 445, (text and note), while in the references in the notes in the following 

 pages, he uses Lupa; in his notes to the second edition of Lamarck's Anim. sans 

 Vert. tom. v. p. 473, he gives Leach's genus as Lupea, while in the references to 

 his own work (Hist. Nat. Crust.) on page 476, he uses thrice Lupa, and once 

 Lupea. Lastly, in the Appendix to Leach's own article in Edinb. Encyc, the 

 genus is called Lima ! 



89. Ibachus antarcticus. One individual marked as " brought from Santa Cruz 

 by R. E. Griffith," agrees with Milne Edwards' character for I. antarcticus, the 

 spine being present on the fifth pair of feet, the absence of which marks his I. Parrae, 

 a native of the Antilles. Is I. Parrae a distinct species? or is it only imperfectly 

 distinguished by the character he assigns to it ? 



98. Alpheus dispar, Randall, is hardly distinct from A. brevirostris, M. Edw. 



101. Hippolyte gracilipes. The specimen thus labelled was in bad condition, 

 but certainly belongs to the genus Palemon ; probably some interchange of labels 

 had taken place. 



103. Palemon Gaudichaudii, M. Edw. Two fine specimens of this species of 

 Milne Edwards, first brought from Chili by Gaudichaud. 



111. Squilla empusa. The specimen I labelled thus, was said to be brought 

 from the Pacific, and does not perceptibly differ from S. empusa, Say, from the 

 Atlantic coast; if it really came from the Pacific, direct comparison with 

 S. empusa of our Coast ought to be made, which I was not able to do for want of 

 specimens of the latter at hand. 



113. Squilla Cerisii. This specimen was brought from the Pacific, and agreed 

 with M. Edward's description of the S. cerisii of Roux, inhabiting the Mediter- 

 ranean ; direct comparison is necessary to determine in what points they really 

 differ. It is more probably the same as S. Lessonii, of Guerin. 



There were also some eight or ten undetermined species, and several of Say's 

 original specimens of the lower orders of the Crustacea. 



Several of the species described by Dr. Randall were wanting, and have been 

 omitted of course in the preceding catalogue. 



Additions and Observations by the Committee. 



In cases where the additions are of species in genera already in the collection, 

 the numbers for the genera in Prof. Gibbes' paper are used, while higher numbers 

 are employed for the additional genera. 



LXV. Stenorhynchus, M. Edw. LXVIT. Maia, Lam. 



116. S. phalangium, Pennant. 118. M. squinado. 



LXVI. Inachus, Fabr. LXVIII. Hyas, Leach. 



117 I. Doisettensis, Leach. 119. H. coarctata. Leach. 



120. H. avanea, Leach. 



