236 MR. A. W. WATERS OiST 



Hah. Cape Horn and Falkland Islands, 160 metres (d'Orb.) ; 

 Patagonia, as ornata (Busk) ; oft" the Argentine, 600 fathoms 

 {ClialL). Cape Horn Exped., St. 170, Canal Franklin, June 27th, 

 1883, 95 metres; Murray Narrows, 200 metres; and Station 

 unknown. 



Cribrilhsta patagonica, sp. uov. (PI. 28. figs. 6, 7.) 

 Zoarium adnate upon Aspidostoma giganteum. Busk. The 

 zooecia are elongate, ovate, distinct, convex ; below the aperture 

 there is an area with 5-7 radiating raised ribs, having between 

 each a pore near to the border. The oral aperture has the lower 

 edge straight, the distal end rounded, and the sides straight; 

 the operculum has on each side a flange projecting inwards. 

 Above the distal border of the oral aperture there is an elevated 

 triangular avicularium directed laterally. The ovicell is large, 

 globose, carinate. There are no vicarious avicularia in the 

 pieces examined, but nevertheless it no doubt belongs to the 

 C.figularis group, and in some respects is like G. clithridiata, 

 "Waters, but differs in the shape of the aperture of the ordinary 

 zooecia, though the ovicelligerous aperture of G. clithridiata is 

 not very dissimilar. The G. patagonica is much like the fossil 

 G. TJngeri, Eeuss, and in many particulars is very similar to the 

 Memhraniporella magellanica, shortly to be described by Calvet. 

 Whether that species should be placed under Memhraniporella 

 is decidedly an open question. [It varies from the description 

 of M. magellanica in having supra-oral avicularia directed 

 laterally, and in the opercula having flanges. Further, I have 

 not found the " iuterzooecial Hohlungen" mentioned by Calvet.] 

 Hah. Cape Horn Expedition, Station unknown. 



Cribrilina latimargijstata, Bush. 



Cribrilinalatimarginata, Busk, Zool. Chall. Exp. vol. x. pt. xxx. p. 131, 

 pi. 22. fig. 10 ; Waters, op. cit. vol. xxxi. pt. Ixxix. p. 22, pi. 1. figs. 11, 

 12, 18; [Calvet, Brjozoen, Hamb. Magalh. Sammelreise, p. 18]. 



I am able to add three new and interesting localities from 

 specimens in the Paris Museum d'Histoire Naturelle. 



Hah. Off the Argentine, 600 fathoms {Bush). 178 a, Mus. 

 d'Hist. Nat., on Hornera (americana, d'Orb.), collected by 

 M. Petit-Thouars in the French ' Venus ' Expedition, off the 

 Falkland Islands. On the specimen of Fasciculipora ramosa 

 figured by d'Orbigny, No. 13735; Falkland Islands. Cape. 



