TURBONILLA PAUCISTRIATA. 561 



Some difference of opinion has existed as to wlietlier or not tlie ty|)ical 7'. hn-iea 

 occurs in the Crag. The shell which at first, in 1848, ^yood ielentified with the 

 Tarho elcijantlssimus of Montagu (now regarded as the eciuivalent of the Turljo 

 hicfeus of Linne), was afterwards considered by Wood as a distinct species, 

 adopting for it in his 1st Supplement of 1872 (oj). cit., p. GO) the name of 

 Chemnitzia elegantior. 



The specimens from St. Erth now figured (PI, XLIX, figs. 17, 18) have been 

 recognised by M. Dautzenberg as the true T. lacteo. They belong to the British 

 Museum. A similar form occurs also at Selsey, and it is said to be very abundant 

 in the Estuarine clays of Belfast. At present neither Mr. A. Bell nor I have been 

 able to find in any of the collections known to us any specimen from the Crag that 

 we can consider typical of the present shell. The difference between the two forms 

 may be seen by comparing Wood's figure of T. elegantior witli those of T. lactea 

 from St. Erth here given. 



Turbonilla paucistriata (Jeffreys). Plate XLIX, fig. 11. 



1884. Odostomia paucistriata, Jeffreys, Proc. Zool. Soc, p. 361, pi. xxvii, fig. 6. 



1905. Turbonilla paucistriata, Ivohelt, Icou. sclialeutrag. euroj). Meerescoucb., vol. iii, p. 152, pi. l.xxii 

 fig. 10. 



1897. Turbonilla paucistriata , Locarcl, E.xped. sclent. Trav. et Talism., Moll. Test., vol. i, p. 440. 



Specific Characters. — Shell rather small, thick and solid, forming an elongated 

 cone ; whorls nearly flat, gradually and regularly tapering to a twisted apex ; orna- 

 mented by straight, slight, inconspicuous and irregular ribs ; spire produced ; suture 

 fairly deep ; mouth pear-shaped, angulate above, rounded below ; outer lip thin, not 

 expanded; inner lip thickened; base obtusely keeled. 



Dimensions. — L. 9 mm. B. 4 mm. 



DistriJjution. — Becent .■ Bay of Biscay (Travailleur Exp.), Palermo (Montero- 

 sato), west coast of Africa (Talisman Exp.), Azores. 



Fossil .■ Waltonian Crag : Walton-on-Naze. Altavilla (Montero- 

 sato), Messina (Seguenza). 



ReinarJiS. — There is a specimen in my collection of Walton fossils which, though 

 somewhat worn, seems to correspond with the figure and description of this species 

 given l)y Jeffreys. The latter authority recorded it in the Report of the 

 " Challenger " Expedition as having been found in the Danish West Indies, l^ut the 

 Rev. R. Boog Watson, the author of that work, thought this was a mistake. 



Turbonilla Kendalli, sp. r.ov. Plate XLIX, fig. 12. 



1898. Chemnitzia euterpe [f), A. Bell, Trans. Eoy. Geol. Soc. Cornwall, vol. xii, p. 148. 



Specific Characters. — Shell small, strong and solid, turreted, sub-cylindrical ; 

 whorls slightly convex, with an angulated base; ornamented hj strong, wide and 



