RISSOA. 145 



It occurs fossil in the coralline crag of Gedgrave 



(Searles Wood), and is found all round the European 

 coasts. 



Note. — To this genus belong, apparently, a number of shells, which, from the 

 rudeness of their delineation, and the extreme brevity of their descriptions, have 

 baffled the efforts of naturalists to recognize them. Such are the following : — 



Turbo subriifus, Adams, Trans. Linn. Soc. vol. v. p. 3, pi. 1, f. 18, 19, from 

 which Mont. Test. Brit. vol. ii. p. 334 ; Maton and Rack. 

 Trans. Linn. Soc. vol. viii. p. 185 ; Turt. Conch. Diction, 

 p. 230 ; Fleming, Brit. Animals, p. 300 ; liissoa subrufa. 

 Brown, 111. Conch. G. B. p. 12, pi. 9, f. 13. 



Supposed by Mr. Jeffreys to be possibly a form of parva var. hi/errupta ; it 

 seems to us, however, much more like i?. rubra. 



Turbo drigatus, Adams, Microsc. pi. 14, f. 16. — Mont. Test. Brit. vol. ii. p. 331. 

 — Maton and Rack. Trans. Linn. Soc. vol. viii. p. 186. — 

 TuRT. Conch. Diction, p. 229. — Fleming, Brit. Animals, 

 p. 300. — liissoa strigata. Brown, 111. Conch. G. B. p. 12, 

 pi. 9, f. 8. 

 Wholly derived from Walker's " Testacea Minuta," fig. 38. Supposed bj' 



some to be the fry of R. striatula. 



Turbo 7-etiformis, Mont. Test. Brit. vol. ii. p. 330. — Maton and Rack. Trans. 

 Linn. Soc. vol. viii. p. 186. — Turt. Conch. Diction, p. 229. — 

 Rissoa reiiformis. Brown, III. Conch. G. B. p. 12, pi. 8, 

 f. 3, 23. 



Solely derived from Walker's " Testacea Minuta," fig. 37. Supposed by some 

 to be the fry of R. punctura. 



Helix variegata, Adams, Trans. Linn. Soc. vol. iii. p. 67, from which Mont. 

 Test. Brit. vol. ii. p. 446 ; Maton and Rack. Trans. Linn. 

 Soc. vol. viii. p. 204 ; Turbo variegatus, Fleming, Brit. 

 Anim. p. 301 ; Spira 9 variegata. Brown, III. Conch. G. B. 

 p. 20. 



Agrees fairly with the lineated variety of labiosa, but has only four whorls ; is 

 usually considered a variety of inconapiaia, but might also be the fry of almost 

 any of the parva section of this genus. 



Turbo elegans, Adams, Trans. Linn. Soc. vol. iii. pi. 13, f. 31, 32 ; from which 

 Mont. Test. Brit. p. 333 ; Turbo Adamsii, Maton and Rack. 

 Trans. Linn. Soc. vol. viii. p. 185 ; Turt. Conch. Diction, 

 p. 230 ; R. Adamsii, Brown, lUust. Conch. G. B. p. 11, pi. 9, 

 f. 20, and R. elegans, p. 1 3. 



The figure reminds one slightly of R, costafa, and the scanty description is not 

 adverse to the conjecture. 



VOL. III. U 



