326 TEST ACE A ATLANTIC A. 



preeminent par rapport au cone spiral obtus, une base plus 

 applatie, une surface plus irregulierement et plus finement 

 granuleuse, etc.' 



The L. accola seems to have been found principally in a 

 subfossil state, none of the specimens which were obtained by 

 Fritsch being apparently quite recent, though some of them 

 were distinctly older than the rest. ' Elle se trouve en un double 

 etat, d'abord avec les caracteres d'une coquille actuelle, re- 

 cuillie a 1'etat mort, avec sa sculpture bien conservee; puis 

 avec un aspect altere, toute la sculpture ayant disparue sous une 

 surface inegale, corrodee ou polie par 1'usure. Ces individus, 

 un peu plus coniques et a la base plus applatis que les autres, 

 semblent appartenir a une faune ancienne, tandisque les autres 

 relevent de Pepoque presente, ou de 1'epoque qui 1'a immediate- 

 ment precedee.' (Mousson, 1. c. 21). 



Grenus 8. PATULA, Held. 



( lulus, Woll.) 



Patula garachicoensis, n. sp. 



T. orbiculato-depressa, discoidea, profunde sed haud late 

 perforata, pallide fusca, subtenuis, vix nitidiuscula, crebre sub- 

 irregulariter aut subconfluente ruguloso-striata ; spira depressa ; 

 anfractibus 5-5-1- convexis, trans versim crebre sed subirregulari- 

 ter arcuatim ruguloso-striatis, ultimo haud descendente, sutura 

 profunde impressa ; apertura lunata ; peristomate tenui, 

 acuto, versus columellam reflexiusculo. Diam. may. vix 3|- ; 

 alt. H Un. 



Var. ft. submarmorata. Vix magis tenuis, et paulo minus 

 grosse sculpturata, spira minus depressa, anfractibus obsolete 

 subalbido-marmoratis. 



Helix agrestis, Lowe, in litt. 



Habitat TenerifTam; juxta oppidulum Garachico, mense 

 Aprili 1861, a Eevdo. E. T. Lowe inventa. Var. /3. (in Tene- 

 riffa certe lecta) a cl. Berthelot Domino Lowe donata. 



Obs. Species P. Bertholdiana, PfeirT., insularum Cap. Vi- 

 ridis, affinis, sed prsecipue differt testa magis depressa et rugosius 

 sculpturata, anfractibus convexioribus (ultimo nullo modo 

 carinato), suturaque profundiore. 



Several examples of the present Patula, which seems to be 

 quite different from everything else which has hitherto been 

 described from the Canarian Group, were taken by Mr. Lowe, 

 during April 1861, near Grarachico, in the north of Teneriffe. 

 Although exceedingly distinct, in its diminished stature, very 

 much smaller umbilicus, and less polished imcZer-portion, per- 



