220 FERUSSACIA. 



whitish callus. Length 9, diam. 3, aperture 3 mm." (Bour- 



Mediterranean countries, Portugal and Spain to Greece, 

 Sicily, Malta, Tunis, Morocco, Canary Islands and Madeira. 

 Type locality Northern Africa. 



Bulla or Helix folliculum GRONOVIUS, Zoophylacium Grono- 

 vianum, pt. iii, 1781, tabularum explicatio p. v; pi. 19, figs. 



15, 16. Helix folUculus GMEL., Syst. Nat. (13), p. 3654.- 

 Achatina folUculus of authors, see PPEIFPER, Monographia 

 Heliceorum Viventium ii, 283; iii, 511; iv, 636 (as Oleaoina), 

 vi, 247, viii, 301; Kiister's Conchyl. Cab. pi. 18, f. 16-19.- 

 Femssacia /'., BGT. Amen. Malac. i, p. 197 ; Malac. terr. 

 chateau d'lf, p. 22, pi. 2, f. 1-3; Prodr. Malac. Tunisie p. 117. 



-WESTERLUND, Fauna, iii. p. 154. Lovea f., WOLLASTON, 

 Testacea Atlant. p. 247. Physa scaturigium DRAP., Hist. 

 Nat. Moll, de la France, p. 56, pi. 3, f. 14, 15 (immature stage). 

 Pupa splendidula COSTA, teste Scacchi, Catalogus Conchy- 

 Horum regni Neapolitan}, 1836, p. 17 (nude name). Turbo 

 tisiu-s Chiereghini, BRUSINA, Ipsa Chiereghinii Conchylia, 

 1870, p. 214, name only. Ackatina risso DESHAYES, Encycl. 

 Meth. vers, ii, p. 12, 1830 (Nice). Lovea wollastoni WATSON, 

 P. Z. S. 1877, p. 334 (Madeira; description of external ana- 

 tomy and coloration). 



Bourguignat, whose description is given above, at first 

 thought this species restricted to southern France and Spain, 

 but later reported it from Tunis. Gronovius figures F. folU- 

 culus very rudely. He describes it as " oblong-ovate, pel- 

 lucid, glabrous ; columella subplicate ; outer lip thin ; size of 

 a grain of oats. Habitat on the coast of Barbary. " Which 

 of the several scarcely distinguishable races was before him 

 it is at present impossible to determine; but in the narrow 

 sense F. folUculus may as well be restricted to the form de- 

 fined by Bourguignat. Specimens from Toulon, France, are 

 figured, pi. 41, figs. 53, 54. 



I have also illustrated a Madeiran example, pi. 39, figs. 15, 



16. It occurs in numerous places not far from Funchal, 

 " chiefly beneath stones in hot and rocky situations near the 

 coast, among plants of the Opuntia tuna or prickly pear." 



