MOORE ABNORMAL SECONDARY DEPOSITS. 555 



65. Turbo Brocastellensis, spec, nov. PI. XYI. 13 a, 13 b. 



Shell small, turbinated, discoidal ; apex obtuse ; volutions 4-5 ; 

 upper portion of the whorls flattened, below which the body whorl 

 is convex or slightly angulated. Surface encircled by numerous 

 regular striae, very finely costated longitudinally. Aperture rounded ; 

 base not exposed. 



Prom the coralliferous conglomerate of Brocastle, where it is rather 

 rare. 



66. Amberleta apicalis, spec. nov. PI. XYI. figs. 7, 8, 9, 10. 

 Shell turreted, fusiform, elongated ; spire tapering ; apex very 



acute ; volutions 9-10, angulated, their surfaces ornamented by 

 three encircling nodulated carinee, the tubercles on the first and 

 second being tooth-like and depressed, the latter, which occupies 

 the centre of the whorl, being most elevated ; the third is formed of 

 small rounded tubercles immediately at the base of the whorl, just 

 above and slightly projecting beyond the suture ; springing from the 

 tubercles are very fine reflected bifurcating strise ; aperture length- 

 ened, ovate. 



The figures 9, 10 appear to be younger forms of this species, in 

 which state the nodulations on the carinae are very prominent and 

 almost spinose, and, like some others of the group ranged under 

 Amherleya, possess mouths less longitudinally ovate than in the more 

 adult specimens. 



Of this pretty species I possess several examples from the Liassic 

 coralliferous conglomerate of Brocastle ; but, like most other shells 

 of any size, they are partly concealed by the matrix. 



67. Amberleya grandis, spec. nov. PL X\T]. fig. 6. 



SheU pyramidal ; spire extended, composed of 6-7 deep, convex, 

 regularly increasing volutions ; surface richly ornamented with seven 

 or eight transverse nodular striae, the three lowest being most ele- 

 vated ; crossing the transverse striae and between their channelled 

 interspaces are numerous faint longitudinal striae, which give the 

 surface a somewhat crenulated aspect. The whorls are winding, 

 and separated by a deep suture. Aperture not visible. 



We possess three examples of this sheU on the same block, but 

 they are partly concealed by the matrix, or imperfect. They are 

 from the Brocastle Liassic conglomerate. 



68. Turbo nodulo- carina ta, spec. nov. PL XVII. figs. 16, 17. 



Shell rather small, turreted ; apex acute ; spire produced ; whorls 

 5, convexly angulated, and separated by a well-marked angular 

 suture. The middle of the upper whorls is crossed by two de- 

 pressed nodulated carinae, which increase in number on the body- 

 whorl ; they are decussated by numerous oblique longitudinal striae, 

 which give the shell a very ornate appearance. 



