Victor i(in Fossils, Part XX IT. 321 



Fam. Skrpulidae. 



Genus Cornuiites, Schlotlieim, 1820. 



\^yotf. — This genus is variously regarded as a member of the 

 Annelida or of the Pteropoda. Thus Benhaml says : — " Many of 

 the tubes referred to Polychaetes by the earlier palaeontologists 

 have been transferred to other groups; thus Cornulites is now be- 

 lieved to be a Pteropod shell." In Eastman-Zittel,2 Dr. G. J. 

 Hinde defines Conndittx as " Thick-walled, trumpet-shaped tubes, 

 Serpala-\\k^ at the lower end, and sometimes attaining a length 

 of three or four inches. Exterior annulated and covered with very 

 fine longitudinal striae. Some authors regard the tubes as Pteropod 

 shells." The genus is there placed, under Chaetopoda, Order Tubi- 

 cola. The present writer holds that the evidence for the annelid 

 nature of these tubes is quite convincing, since the internal micro- 

 scopic structure of the shell, as shown by G. R. Vine,^ is identical 

 in many points with some living tubicolar forms belonging to the 

 family Serjmlidae, and this is further strengthened by the frequent 

 occurrence of attachment in the earlier stage to foreign bodies.] 



Conudltes yonufji, sp. nov. (Phite XTIL, Fig 4; Plate XIV., 

 Figs. 13, 14.) 



Dtxcriptiou. — Shell hollow, conical; sides widening moderately 

 rapidly, and expanded at the apertural extremity. Base blunt, 

 subrounded and imprassed, as would t-e the case if attached to a 

 small foreign body. Annulations consisting of a closely set series 

 of well-marked rings projecting from the general surface of the 

 tube, each ling having a sharp, finely tuberculated central ridge 

 or ring, with two lateral ones, sharp and smooth. Longitudinal 

 striae clearly visible, and under a lens, a series of finer, transverse 

 striae lietween them, somewhat similar to that seen in Vine's 

 Cor/ndifeM scalariformis.^ The holotype is practically uncrushed,. 

 although in compressed shale, sliowing tlie shell was sufficiently 

 thick to withstand the pressure of the sediment as it was thrown 

 down. 



McdAiirtnunfa. — Hoh)type. Length, 24 mm. ; greatest width, at 

 apex, 10 mm.; width at middle of shell, 6 nun.; width at 1 nun. 



1 Ciniib. Nftt. Hist, vol, li., ISIW. p 30:>. 



? Vol. i., 2.n(\ ed., 191 M, p. 131». 



:i (^nnrt. .I«»uni. (Jeol. So<-., vol. xwviii., IS82, }»p. 37i> 381, pi. xv., fi{,'s 1, !>, 10. 



4 Ibid., pi. XV., fiy. la. 



