ACTEONINA SCARBURGENSIS. 95 



of Deslongchamps from the Oxford Clay of Dives, the other variety of which, 

 var. apfi/rlid, might, with similar neglect of minor details, represent P. buchiana. 



[ Patella. — The record of *P. cingulaia (31, 36) as occurring in the Cornbrash 



is founded on an example discovered in the marl at [slip, Oxon, by Mr. J. V. 

 Whiteaves. This marl is now recognised as here found lying below the Cornbrash.] 



Order OPISTHOBBANGHIATA. 



[The genus Actbon is twice entered as occurring in the Cornbrash, as A. sedgwickl 

 and as A. sedgwichi var. pull us. Both of these entries refer to a single specimen in 

 the Leckenby collection, which specimen occurs in a matrix believed to be not 

 Cornbrash, but probably grey limestone.] 



Genus ACTEONINA, D'Orbigny. 



This genus was denned as always distinguished (from Acteon) by the want of 

 folds on its columella, but is as usually distinguished also by the absence of spiral 

 striae on the shell. 



The records' of Acteonina are : 



A. cinerea (48). *A. scarburgensis (38, 39, 42, 48). 



*A. luidii (18, 31). A. gigantea (48). 



The actual record of A. luidii as a Cornbrash fossil distinct from the other species 

 is an entry by Whiteaves, quoted by Phillips, of a fossil obtained at Islip, Oxon ; 

 but this specimen came, as Mr. Whiteaves now states, from the flaggy beds below 

 what is here reckoned to be Cornbrash. The fossil is said by Lycett to come 

 from the Forest Marble of that locality. For A. gigantea see ^4. elongata. 



Acteonina scarburgensis, Lycett. Plate IX, fig. 1. 



1863. Acteonina scarburgensis, Lycett, Suppl. Great Ool. Mollusca(Pal. Soc), p. 28, pi. xxxi. fig. 13. 

 1885. — Hudleston, Geol. Mag. [3], vol. ii, p. 204, " not figured." 



Type. — "Shell ovatelv ventricose, smooth; spire short, obtuse, consisting (4' 

 four narrow convex volutions. The last volution has the sides slightly convex, its 

 upper margin rounded and slightly channeled at the suture ; the aperture is 

 narrow, somewhat expanded at the base, which is marginated at its junction with 



