LINNEAN SOCIETY OE LONDON. XXXI 



8. "On Rieracium silhetense, DC." By C. B. Clarke, Esq., 

 F.L.S. 



The writer disagrees with Mr. Beutham's identification of this 

 species with Ainslicea angustifolia, Hook. f. et Thorns. 



9. "Notes on Indian Gentianaceae." By C. B. Clarke, Esq , 

 F.L.S. 



The paper contains a list of Indian Grentianacese, with remarks 

 on those species, especially the Bengal ones, of which the writer 

 has sufficient materials to justify any. The sources are his own 

 herbarium, that of Mr. Kurz, and the collection belonging to the 

 Calcutta Botanic Grardens. 



10. " On some Atlantic Crustacea from the ' Challenger ' Expedi- 

 tion." By E. V. "Willemoes-Suhm. Communicated by Professor 

 WyviUe Thomson, F.E.S. 



Among the many deep-sea crustaceans which have been brought 

 up either by the dredge or the trawl during the ' Challenger's ' 

 cruise in the Atlantic, the most interesting are described in the 

 present paper — in addition to descriptions of both sexes of the 

 interesting Nebalia from the shallow water of Bermuda, some re- 

 marks on the male and the structure oi Cystosoma {Thaumops), 

 and some additions to our knowledge of the natural history 

 and development of a land-crab from the Cape-Yerdes Islands. 

 More detailed descriptions of these forms are given than in the 

 papers already printed elsewhere, as well as an attempt to settle 

 their systematic position. The paper is divided into seven parts, 

 as follows: — (1) on a blind deep-sea Tanaid; (2) on Cystosoma 

 Neptuni {Thaumops pellucida) ; (3) on a Nehalia from Bermudas ; 



(4) on some genera of Schizopoda with a free dorsal shield ; 



(5) on the development of a land-crab ; (6) on a blind deep-sea 

 Astacus; (7) on Willemoesia (Grrote), a deep-sea Decapod allied 

 to Oryon. 



