GASTEROPOD FAUNA IN THE MILLSTONE GRIT OP SCOTLAND. 349 



Larbert, 9 to 10 feet above the Castlecary Limestone. Specimen No. T2216 B is from 

 the pit shaft of Steens Fireclay Works, f mile E. of Castlecary Railway Station ; 

 Bilston Burn section, Midlothian. 



Observations. — I have referred this species to the genus Sanguinolites rather than 

 Pleurophorus, as there are no signs of the characteristic cardinal teeth of the latter 

 genus. I think there can be little doubt of the relation of the shell to the American 

 species. I have compared the suite of specimens with Sanguinolites ovalis, Hind, but 

 the two radiating ridges on the dorsal slope at once separate it from this species. The 

 figure of the specimens from Nebraska (op. supra cit.) is from the cast of an interior, 

 copied from Geinitz's work. It is shown to have three curious curved lines passing 

 from the front of the umbo to the lower border. I cannot think that these are natural, 

 and I have never seen any similar structure in a sanguinolitiform shell. The species 

 is represented in the collection by seven examples, amongst which is a fairly well- 

 preserved testiferous example, and a cast of the left valve (PI. II. fig. 38). 



This species belongs to the group of Sanguinolites tricostatus, but it is considerably 

 less transverse than that species. Externally there is a strong resemblance to the 

 Pleurophorus elegans of the Permian. 



? Allorisma refiexa, Meek. (PI. II. fig. 39.) 

 Allorisma (Sedgwickia) refiexa, Meek, Fin. Rep. U.S. Geol. Sum. Nebraska, p. 217, pi. iv. fig. 15. 



A small slab, No. T2177 B , is covered with a very strongly marked shell, of which, 

 however, no single specimen is perfect. I refer it provisionally to Allorisma refiexa, 

 Meek, with the description of which it seems to agree. 



I have doubts whether Meek's generic diagnosis is correct, as the shell has not the 

 general shape usual in Allorisma. 



The dimensions of one of the Scotch shells, a right valve, are : antero-posteriorly, 

 20 mm. ; dorso-ventrally, 8 mm. 



Locality. — Glencryan, If mile S.S.E. of Cumbernauld, Dumbartonshire, 10 to 20 

 yards down stream from the fault, and on the under side of the waterfall. 



Tellinomorpha Hindu, Bolton, 1907. (PI. II. figs. 40-42.) 

 Tellinomorpha Hindii, Bolton, 1907, Q. Journ. Geol. Soc, vol. lxiii. p. 460, pi. xxx. fig 8, a, b. 



Specific Characters. — Shell somewhat transverse, gibbose, with a much-compressed 

 dorsal slope, inequilateral. The anterior end is short and narrowed, its margin rounded. 

 The inferior border is gently curved, and meeting the posterior at a well-marked angle. 

 The posterior border is obliquely truncate, almost straight, moderately short, making 

 an obtuse angle with the hinge line, the latter straight. The umbones are gibbose, 

 elevated, incurved, and situated in front of the middle of the valve. Lunule large and 

 broad. Escutcheon narrow, but well marked. From the umbo to the postero-inferior 



