494 Dr. H. Woodward — On Fossil Shells, etc., from Sumatra. 



have in a similar manner overlooked the indications of crenulations 

 on the body- whorl. 



We have, however, considered it safer to refer this Cyprcea to a 

 new species, and have named it C. subelongata. 



Formation and Locality : — Obtained with the preceding species. 



31. Cerithium, sp. (casts of). PL XII. Fig. 4. 



Our figure represents a cast of four somewhat convex volutions, 

 very gradually increasing in size, and exhibiting traces of longi- 

 tudinal ribs. Two other casts, probably belonging to the same 

 species, indicate a considerably larger form. From their general 

 character they no doubt indicate a species of Cerithium ; but from 

 their state of preservation, it is difficult to assign them to any 

 particular species. They resemble somewhat the casts figured by 

 D'Archiac (plate xxvii. fig. 13 and 14, p. 303, op. cit.) from the 

 Nummulitic formation of India. These casts of Cerithium do not, 

 however, exhibit any external indications of ribs. They might have 

 represented the interior of Cerithium Montis- Selce, K. Martin, plate 

 xii. fig. 1 (Die Tertiarschichten auf Java, Leiden, 1879). 



Formation and Locality : — Found with the preceding species. 



32. Turbo (Borneensis? Bottger). PI. XII. Fig. 5. 



This is represented by the cast of a turbinated shell showing 

 about four rapidly increasing very convex volutions, separated by 

 a deep suture ; portions of the shell remaining apparently indicate a 

 thick and smooth test. Base umbilicated. 



Dimensions : — Height of shell 36 mm. ; breadth 36 mm. Thick- 

 ness of body-whorl 19 mm. It seems probable that our specimen is 

 closely allied to, if not actually identical with, the Turbo Borneensis 

 of Dr. 0. Bottger (Palaeontographica : Beitrage zur Naturgeschichte 

 der Vorwelt, Supplement III. Lief. I. 1875, 4to. p. 11, table i. 

 fig. 3, a, b, c, and 4), obtained from the Nummulitic Limestone of 

 Pengaron, Borneo, and also from the Tertiary formation of Sumatra. 



This cast may also be compared with the Turbo Fendjabensis, 

 D'Archiac and Haime (pi. xxvii. fig. 2, op. cit.), from the Tertiary 

 Calcareous Marl, Punjaub, India. 



Formation and Locality : — Found with the preceding species in 

 bed marked (5), by M. Verbeek. 



33. Turbo, sp. (not figured) . 



There are two other casts of a much larger form, probably 

 belonging to the same genus, indicating a more discoidal shell, the 

 body-whorl being much expanded, and the spire more depressed, 

 the shell having also fewer whorls and a larger umbilical cavity. 



Dimensions : — Height 1 J inch ; breadth 2-J inches. 



Formation and Locality : — Found with the preceding. 



34. Phasianella Oweni, D'Archiac, 1854. PL XII. Fig. 6. 



An oval elongated shell composed of 6-7 somewhat convex 

 volutions, that increase very regularly and are separated by a well- 

 marked suture. The aperture is subovate and the shell is not 

 umbilicated ; body-whorl equalling in length the height of the spire. 



Dimensions : — Actual height of shell 33 mm. (Height of shell with 

 the spire restored, about 41 mm.) Breadth of body-whorl 25 mm. 



