98 H. Woodward — On a New Cretaceous Rostellaria. 



The only form approaching the subject figured on Plate III. in 

 size and character is a shell called by Mr. Harry Seeley Chemnitzia 

 Woodioardii, from the Chalk of Sussex, and preserved in the 

 Brighton Museum. Of this and other specimens Mr. Seeley gives 

 some notes and outline-sketches in the " G-eologist," vol. vii., 1864, 

 p. 89, pi. viii. ; the figures, however, are too roughly executed to 

 convey more than a very general notion of the specimens, and are, 

 unfortunately, unaccompanied by references to the plate in the text. 



Mr. Seeley has, however, obligingly supplied me with the requisite 

 references, which I append for the convenience of those who may 

 care to take the trouble to add them to the text of their copy of the 

 " Geologist." 



Chalk Gasteropoda recorded by Mr. H. G. Seeley, F.G.S., in the 

 " Geologist," 1864, vol. vii., pp. 89-93, pi. viii., part of the col- 

 lection of the Brighton Museum. 



1. Cerithium ornatissimum, var., p. 89, pi. viii., figs. 7 & 8. 



2. Gallicum, D'Orb., var., p. 90, pi. viii., fig. 3. 



3. Fleurotoma amphiloga, n.sp., var., p. 90, pi. viii., fig. 2. 



4. Fusus trachys, n.sp., var., p. 91, pi. viii., fig. 13. 



5. Chemnitzia Woodwardii, n.sp., p. 91, pi. viii., fig 1. 



6. Solarium ornatissimum, n.sp., p. 91, pi. viii., figs. 15 & 16. 



7. Pteroceras, representative of Fittoni, p. 91., pi. viii., fig. 4. 



8. Pleurotomaria Jukesii, n.s^., p. 92, pi. viii., figs. 10 & 11. 



9. Trochus, sp. ?, p. 92, pi. viii., figs. 6 & 6. 



10. Trochus (near T. Geinitzii, Eeuss), p. 92, pi. viii., fig. 9. 



11. Fusus (?), p. 92, pi. viii., fig. 14. 



12. Fusus (?), p. 93, pi. viii., fig. 12. 



13. Solarium Binghami, Baily, p. 93, pi. viii., fig. 17. 



Mr. Seeley's description of Chemnitzia Woodwardii is as follows : — 



" Shell subcylindrical, two and a half times as high as wide, consisting of about 7 

 whorls, which regularly increase in size and are moderately convex. Each whorl is 

 one and three quarter times as wide as high. The space where the whorls adjoin is 

 concave, and the suture is indistinctly seen. There is no ornament, but a great 

 number of fine and close spiral strise. This and some other shells have quite an 

 Oolitic aspect." (p. 91, op. cit.) 



A comparison of Mr. Price's specimen with the above description 

 and with Mr. Seeley's figure (op. cit. pi. viii. fig. 1) will suffice to 

 preclude us from placing them together. 



Whilst the absence of the mouth in Chemnitzia Woodwardii, 

 Seeley, renders it impossible to determine its genus with certainty, 

 its presence in Mr. Hilton Price's specimen clearly forbids its refer- 

 ence to Chemnitzia. 



In Chemnitzia the shell is " slender, elongated, many-whorled ; 

 the whorls plaited ; apex sinistral : aperture simple ; ovate ; peri- 

 stome incomplete." ^ Upwards of 180 fossil species have been pro- 

 visionally referred to this genus ; many of them are of gigantic size 

 as compared with the existing species, all of which are small. 



To the genus Pteroceras D'Orbigny alone has referred nearly 100 



species of fossil shells, ranging from the Lias to the Chalk; many of 



them are, however, more nearly related to Aporrhais. Cerithium 



is another genus which has nearly 500 fossil species, ranging from 



1 "Woodward's Manual of MoUusca, p. 126. 



