322 



OX THE MOLLIISCA PROCURED DURING THE "PORCUPINE" 

 EXPEDITIONS, 1S69-1S70. SUPPLEMENTAL NOTES, PART 11.' 



By E. E. Stkes, B.A., F.L.S. 



Head I6th June, 1905. 



In the following pages I have dealt with the residue of the Tecti- 

 hranchs, inchiding the Pteropods, and also with the Heteropods. No 

 new forms have been described, bnt some figures are given of little- 

 known species. The next part will contain the Plcurotomidfe, of 

 which there are a considerable number of deep-sea forms of interest. 



The following addendum should be made to the list of stations of the 

 1869 cniise given ante. p. 25 : 



•23b. 56° 9' N. lat., W 10' W. long., 664 fath., 41° 7' Fahr. bottom temp. 

 There is also a slight confusion on p. 37 ; students are requested to 

 transfer the entr^- of " PI. Ill, Fig. 3 " fi'om the beginning of line 4 

 to the end of line 6. 



EINGICTJLA, Deshayes. 

 Ringicuh, Deshayes : Anim. sans Yert., 2nded., vol. viii (1838), p. 323. 



The species of this group are exceedingly difiicult to separate, and 

 will, I think, prove to have a greater range of specific variation than 

 is generally attributed to them. 



The figures given by authors, including those of Morlet's monograph, 

 are drawn on so small a scale that the characters are obscured, and, 

 without a long series of specimens, it is impossible to be sure of the 

 real status of many of the described forms. 



In his manuscripts Jeffreys lists E. Schlumhergeri, Morlet,'^ but the 

 specimens so labelled certainly do not belong to that species. 



Only one specimen in the collection appears to be referable to 

 B. huccinea (Br,); it is from "Cartagena," and is mentioned here 

 owing to Jeffreys' identification. Personally, I attribute it to 

 R. auricuhta, and have doubts as to the specific distinction of the two 

 forms. The following note relating to R. huccinea, from Jeffreys' 

 MSS., seems of interest: — "Is^othing is said in the short description 

 about sculptiu'e, but the figure evidently represents R. refifricosa, 

 J. Shy., from the Crag. The latter is transversely striated, as in 

 Seguenza's specimen from the Calabrian or Sicilian Pliocene, named 

 R. buccinea. It appears to be distinct as a variety only from 

 R. aun'culata of Menard, which is the common recent or living species. 

 The shape, size, and sculpture are exceedingly variable. Examined 

 a large series, recent and fossil, llth jS^ov., 1872, J. Gr. J." 



ElNGIClTLA ADMIRABILIS, Moilet. 



RingicvJa admirahilis, Morlet : Joum. Conchyl., vol. xxx (1882), 



p. 203, pi. ix, fig. 3 ; Pilsbry, Man. Conch., vol. xv, p. 397. 



" Porcupine " Expedition, 1870, " Atlantic " and " Mediterranean." 



1 For Part I, see ante. p. 23. 



^ Joui-n. Conchyl., 1882, p. 204 (not 1878, as given in Jlan. Couch.). 



