MADEEPOEAEIA OP THE DEEP SEA. 245 



it from the Cladocoraceae and from my Oncliotrochus (Monog. Brit. Foss. Corals, 2nd 

 series, part ii. No. 1, p. 4, 1869), and places it in the genus Ccelosmilia. 



This genus I carefully analyzed in the monograph just referred to (p. 5) ; and out 

 of 15 species I have described six. It is a subgenus of the genus Trochosmilia ; and 

 1 have never noticed gemmation from any corallite of any species. 



Believing that the new genus is a good one, and that it is better to form one for the 

 two species, I venture to include Ccelosmilia fecunda, Pourt., in it, and to term it 

 Blastosmilia fecunda, Pourt. The American species ranges from 63 to 315 fathoms, 

 and affords another instance of the affinity of the West-Indian and Mediterranean 

 marine faunas. 



A further possible alliance is indicated in the affinities of the species with Cwnosmilia 

 arbiiscula, Pourtales (Zool. Results of Haslar Expedition, pt. i. p. 39, 1874). The 

 genus Cwnosmilia is thus defined : — " This genus is formed to receive the Paramnili(B 

 propagating by germination, and thus becoming compound. Single corallites are 

 typical Parasmilim." In the Supplement to the British Fossil Corals I described several 

 Parasmiliw, and was always impressed with the great costal development, and that of 

 the endotheca and columella. But I never found one budding. The costse in Cceno- 

 smilia arbuscula are, from the photographic reproduction given, not well developed, nor 

 is the columella. Whilst clearly seeing the distinction between Blastosmilia and Ccelo- 

 smilia, I cannot help thinking that the form described by Pourtales is very closely 

 allied to mine. 



IV. Genekal Eemaeks. 



The numbers of the " dredgings " refer to those of H.M.S. 'Porcupine;' and their 

 exact localities and temperatures are stated in the first part of this essay (Trans. Zool. 

 Soc. vol. viii. p. 338). 



The Caryophylliw now described are remarkable for their low septal number and 

 slender shape. They have each an epitheca ; and in Canjoj)hjllia simplex it is beau- 

 tifully marked with a chevron pattern. They come within a section of the genus of 

 which the species C. vermiformis, Duncan, described in the former essay, is the type. 

 They are not without affinities to Pourtales's Stenocyathus, from the other side of 

 the Atlantic. They are both from deep water in the Atlantic, west of the British 



Channel. 



Bathycyathus minor, sp. nov., is without those interestiag alliances which rendered 

 the other species with which it was found so interesting. It came from a great depth, 

 off the south-west coast of Spain, in 1095 fathoms. 



Six species of Paracyathi, all fi-om the Mediterranean, are interesting for the beauty 

 of their construction and their distinctness fi'om the forms already described. The 

 Parathyathus striatus, described in the first essay, I believe to be found also in the 

 American part of the Atlantic. One of the new species is remarkable from its entire 



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