SUPPLEMENT.— CANAVARELLA. cxxix 



1. Canavarella belophoka. 8. Buchman. Suppl., Plate XXII, figs. 22—24. 



Description. — Subpaucicostate, with little sign of decline. 



Locality and Stratum. — Dorset: Stoke Knap, in sandy grits with Terebratula 

 infraoolithica. 



Date of Existence. — Scissi hemera. 



The two following species have a radial line much less projected peripherally 

 than in C. belophora. It is like that of Lioceras ; but they are much more com- 

 pressed shells than any of that genus, also they do not show any striate character. 



2. Canavarella? toma, S. Buchman. Suppl. Plate XXII, figs. 16—18. 



Description. — Leptogyral; angustumbilicate ; subspissi-parvi- and connati- 

 costate; periphery acutifastigate. 



Locality and Stratum. — Gloucestershire : Buckholt Wood (Frocester), hard bed 

 at top of Cephalopod bed. 



Date of Existence. — Opaliniformis hemera. 



3. Canavarella? sceleta, S. Buchman. Suppl., Plate XXII, figs. 19 — 21. 



Description. — Almost perleptogyral ; angustumbilicate ; subpauci-subobscuri- 

 simplicicostate, periphery acutifastigate. 



Distinction. — From G. toma — the umbilicus is a little wider, and the margin less 

 definite, the ribs are not connate, are somewhat distant, and are less distinct. 



Locality and Stratum. — Dorset: Burton Bradstock, top of Yeovil Sands. 



Date of Existence. — Aalensis, or Opaliniformis hemera. 



The following species is placed here for convenience only. 



4. Canavarella? arenacea, S. Buchman. Plate XXVIII, figs. 20, 21; Suppl., 



Fig. 101, p. clxv. 



1890. Grammoceras striatulum, This Monogr., PL xxviii, figs. 20, 21, 



Description. — Platyleptogyral, sublatumbilicate ; pauciseptate, brevilatilobate ; 

 subspissi-parvicostate ; periphery subfastigate, parvicarinate. 



Distinction. — From Ammontes lympliarum, Dumortier, 1 the smaller carina, the 

 much more open umbilicus. 



Bemarhs. — This species is not a Orammoceras, nor does it belong to any of the 



Grrammoceratoid genera. The radial line is remarkable with its biarcuate curves. 



The species may be allied to Am. lympharum, Dum. ; but it is easily separable 



therefrom. 



1 ' Dep. Jurass. Rhone,' iv, PI. xvi, figs. 5, 6. 



