OBSERTED AT MOCvADOE. 201 



group, it was found plentifully recent by myself and Mr. "Wollaston. 

 In Grand Canary it is so abimdant in the neighbourhood of Las 

 Palmas, that it is largely exported alive in casks to the Havana as 

 an article of food. At Mogador I found it also plentifully, up the 

 river, towards the Emperor's Garden. In the Madeiran Islands it 

 does not occur, though a few Canarian individuals from Teneriffe, 

 turned loose by myself at my house on the Levada de S** Luzia in 

 the neighbourhood of Punchal, ten or twelve years ago, may per- 

 haps colonize the place. 



10. Bulimus acutus (Miill.). Helix harhara, Linn. Syst. ed. 12. 

 1249 ; Hani. Conch. Linn. 384. 



/8. unicolor, albidus, Pf. (ed. 1) ii. 215. 



y. Turriciila (Chemn.) ; y. major, &c., Pf. I. e. ; Tu7'bo Turricula 

 Maroccana, Chemn. si. 280, t. 209. ff. 2063, 2064. 

 Abundant on sand-hills near Mogador. 



11. BuUmtis ventrosus (Per.), Pf. ii. 215. B.ventricosics, Drap. 

 78, t. 4. f. 31, 32; Eossm. vi.41,f.377; D'Orb. MoH. Can. in W. B. 

 Hist. ii. 2. p. 67. Helix acuta, Webb, Syn. 13. no. 21 (non Miill.). 

 — Not uncommon at the Emperor's Garden, Mogador. 



12. Bulimus solitarius (Poir.), Pf. (ed. 1) ii. 216; B. conoideus, 

 Eossm. vi, 41, t. 376 ; Helix conoidea, Drap. 78, t. 5. f. 7, 8. — On 

 trunks of trees at the Emperor's Garden, near Mogador : not 

 uncommon. 



13. Bulimus Paivce, Lowe. 



T. majuscula rimata adulta decoUata siibcj'lindrico-tiu-rita sursum sub- 

 attenuata apice truncata solidiuscula opaca hvido-cervina distincte et 

 sequaliter reticulata, lineis spiralibus impressis subtilibus strias incre- 

 menti creberrimas concinne decussantibus ; anfr. 5-6 convexiusculis, 

 sutura impressa constrictiuscula; apert. ovali sursum acuta, perist. acute 

 deorsum expanse intus incrassato-costato, marginibus callo crassiusculo 

 late distincto junctis, columellari altero duplo breviore crasso reflexo. 



Long. 18-21 lin. (39-44 miUim.), diam. /a hn. (16 mill.) ; apert. long. 

 6h lin. (13-14 mill.), lat. 4 lin. (8^ mill.). Anfr. 5-6. 



B. decollatm /3. major, Pf. (ed. 1) ii. 153 ; Kiist. 1. 12. f. 21, 22. 

 " Helix decoUata, var.. Per. 1. 140. f . 6 " (Pf.). 



Prom two fine examples presented to me at Mogador by Mrs. 

 Elton, who, I think, said she had obtained them at Eabat. 



This fine species difiers strikingly in several respects from the 

 obsoletely decussated state or variety of ^. decollatus (L.). With 

 the same number of volutions, it is not only twice, or nearly twice 

 as large, but it is less cylindric, having the volutions more convex, 

 the suture more deeply contracted or impressed, the last volution 



LINN. PROC. — ZOOLOGY. 14 



