W. H. Hudleston — On the Yorkshire Oolites. 55 



Descriptions. — Dogger Variety. — Specimen from the Dogger (zone 

 1), Peak (Blue Wyke). Leckenby Collection. Figure 7. 



I Height 6-5 millimetres. 



Approximate I Width 6-25 ,, 



( Spiral angle 78°. 



A small turbinate shell, highly ornamented. Spire few-whorled 

 (much eroded in the specimen), and apparently about |^rd the height 

 of the entire shell. Body-whorl large, sutui'es wide. The orna- 

 mentation is rich, consisting of well-cut spirals strongly tuberculated ; 

 the uppermost row of tubercles recedes, and was probably rather 

 imbricated. Other indications are wanting. 



CoRNBRASH Variett. — Specimen from the Cornbrash (zone 4), 

 Scarborough. Leckenby Collection. Figure 8. 



( Height 12 millimetres. 



Approximate < Width 11-25 „ 



( Spiral angle 80°. 



About twice the size of the Dogger variety, but too imperfect and 

 too much involved in matrix for accurate description. The system 

 of the tuberculation is pi'oportionately enlarged, the tubercles being 

 exceedingly coarse and spirally elongate. The specimen having 

 been much eroded, these tubercles have a sort of polished appearance, 

 though it is not imjarobable that they were originally imbricated. 

 Suture wide. 



Belations and Distribution. — But little more can be said on these 

 points. The gaping suture and the probable imbrication of the nodes 

 make it almost certain that these forms, small and battered though they 

 be, belong to the group of Delpliinulce, of which Turbo (D.) funiculatus, 

 Phil., may be regarded as the type. Each specimen is unique in its 

 horizon for Yorkshire, and this is an additional reason for not 

 attempting any new names. Specimens similar to, if not identical 

 with, the Dogger variety, may be noted occasionally from the Inferior 

 Oolite of other parts of England. 



70. — Turbo (Delphinula) granatus, sp. n. Plate II. Figs. 9-12. 



Delphiniila granata, Bean, MS. 

 (Solarium granatmn. Bean, MS. 



Descriptions. — Section A. — Shell depressed, bicarination of body- 

 whorl indistinct. 



Specimen from the Dogger (zone 1), Peak (Blue Wyke). Leck- 

 enby Collection. Figs. 9, 9a. 



Height 5-5 millimetres. 



Width 6-0 „ 



Spiral angle 120°. 



Hatio of body-whorl to entire shell 85 : 100. 



Shell small, turbinate, depressed, umbilicated. Whorls angular and 

 step-like ; those of the spire about 4 in number ; suture rather close. 

 The apical whorls ai'e nearly smooth, but the antepenult exhibits a 

 fine granulated carina towards the base, whilst the rest of the shell is 

 marked by fine spiral granulations with larger granulations on the 

 carinse. Body-whorl very large in proportion and angular : close to 



