loU LlTTORINID.'E. 



reddish brown.* Of these there are two or three series 

 upon the penult turn, and four upon the body, of which 

 the last is not quite terminal, but lies at some distance 

 from the extreme base, and the first two, which are usually 

 rather nearer toofether than the rest, are often confluent, 

 the spots in this event being converted, since they incline 

 in different directions, into angulated streaks. There are 

 only four volutions, of which the final one occupies one- 

 half of the dorsal length. The spire is short, and ends 

 in a rather large and very blunt apex. The smaller turns 

 are ventricose and of moderate longitudinal increase ; the 

 body is large, extremely rounded or swollen, and broad in 

 proportion to its length ; its basal declination is sudden, 

 but much arcuated. The suture is fine, but through the 

 convexity of the volutions is well pronounced. The mouth, 

 which usually occupies full three-sevenths of the entire 

 length, is suborbicular ; it is not much produced at the 

 base, but is well rounded below. Both lips ai-e arcuated, 

 especially the thin and simple outer one. The pillar-lip 

 is narrow, but is raised and reflected ; behind it lies a 

 small but distinct umbilicus. The length of the shell sel- 

 dom exceeds the twentieth of an inch : the breadth is 

 about one-third less. 



A very rare and probably southern species, hitherto ob- 

 tained only at the Channel Isles, where it was found by 

 Mr. Barlee. 



* One of Adams' wretched drawings in the Linnaean Transactions reminds us 

 a little of this species, although we do not think it at all likely that he was 

 acquainted with the Guernsey shell. It is entitled, 



Tnrho scriptus, Adams, Trans. Linn. Soc. vol. iii. p. 65, pi. 13, f. 11, 12 ; from 

 which Mont. Test. Brit. vol. ii. p. 333 ; Maton and Rack. 

 Trans. Linn. Soc. vol. viii. p. 185 ; Tukt. Conch. Diction. 

 p. 230 ; Fleming, Brit. Anim. p. 300. 



