196 Linnean Society. [May 7? 



in the several genera of Myriapoda are particularly noticed ; and the 

 principles on which their development, in its various modifications, 

 depends, are elucidated by numerous observations on their mode of 

 growth. The structure and development of the head are next treated 

 of in detail in the different families and genera of the Chilopoda ; and 

 the organs of nutrition are especially examined with reference to their 

 development and analogies. This branch of the subject is concluded 

 by an appreciation of the relative value of the different parts of the 

 skeleton in furnishing generic and specific characters. 



The systematic description of the families, genera and species of 

 the Myriapoda Chilopoda completes the memoir ; which was accom- 

 panied by a series of drawings, illustrative of their external anatomy 

 and generic characters. 



May 7. 



E. Forster, Esq., V.P., in the Chair. 



M. Louis Agassiz, Professor of Natural History at Neufchatel, and 

 Dr. M. J. Schleiden, Professor of Botany in the University of Jena, 

 were elected Foreign Members. 



Hugh Falconer, Esq., M.D., and Mr. George Brettingham Sow- 

 erby, Jun., were elected Fellows. 



Read " Descriptions of the Insects collected by Capt. P. P. King, 

 R.N., F.R.S., F.L.S. &c., in the Survey of the Straits of Magellan." 

 By John Curtis, Esq., F.L.S. &c., in continuation of a paper printed 

 in vol. xviii. of the Transactions of the Society. 



The present paper, like the former, is devoted to Coleoptera, and 

 the following are the new genera and species characterized in it : — 



Fam. HisTERiD^. 

 Hister Mathewsii, violaceo-ater, capite thoracis margine elytrisque punc- 



tulatis nisi in elj'trorum disco ubi maculae 2 magnae violaceae striaeque 



tres basales breves. Long. If lin. ; lat. 1^. 

 Hister furcatus, nitide virescenti-niger, thoracis lateribus brevi-canalicu- 



latis punctulatis, elytris stria sutm-ali curvata basali tribusque costam 



versus apicem baud attingentibus. Long. If lin. ; lat. If. 

 Hister casta?ieus, Isevis niger, thoracis lateribus punctulatis, elytris pedi- 



busque castaneis ; illis stria suturali furcata duabus aliis aequilongis al- 



teraque humerali breviore. Long. If lin. ; lat. 1^. 



