CANARIAN GROUP. 323 



on the Cumbre above Buenavista, in Palma ; and also, in semi- 

 cnltivated grounds, in Hierro. 



The single example, now before me, from Fuerteventura has 

 the umbilicus a trifle larger tban is the case in the specimens 

 from the other islands; but I can see nothing about it to 

 warrant the suspicion that it represents more than a slight 

 insular modification (which we might perhaps cite as the * var. 

 /3. fuerteventurce ') of the H. crystallina. 



(§ Vermettm, Woll.) 



Hyalina festinans. 



Zonites festinans, Shuttl., Bern. Mitth. 138 (1852) 

 Helix festinans, Pfeiff., Mon. Hel. iii. 106 (1853) 

 Hyalina festinans, Mouss., Faun. Mai. des Can. 17. pi. 1. f. 



22-24 (1872) 



Habitat Palmam ; in sylvis eclitioribus late sed parce 

 diffusa. 



This little Hyalina appears to be peculiar (so far at least as 

 has been observed hitherto) to the island of Palma, where it 

 occurs in damp sylvan spots of intermediate and lofty altitudes. 

 It was met with by Mr. Lowe and myself in the Barranco de 

 Gralga, and by the sides of the Vueltas (on the ascent to the 

 Cumbre) above Buenavista ; and Mr. Lowe obtained it (on 

 May 26, 1858, in the wood of El Bucco, at El Monte, above 

 Barlovento. 



The H. festinans has somewhat the same whitish-green 

 colour, or olivaceous-brown, as the H. lenis (which is likewise 

 a Palman species, though found equally in Hierro) ; but it is 

 very much smaller and less sculptured, with the spire more 

 depressed, with the ultimate and penultimate volutions 

 (particularly the former) conspicuously narrower or less de- 

 veloped, and with the umbilicus, although open and spirally 

 visible from beneath, not quite so much so (relatively) as is the 

 case in that species. In mere stature indeed it may be said to 

 be intermediate between the H. lenis and the crystallina ; 

 though its much greater bulk, wider umbilicus, and yellowish- 

 green hue will at once separate it from the latter. 



Perhaps in reality the nearest ally of the H. festinans is the 

 minute and very rare H. scintilla, Lowe, of the Madeiran 

 archipelago, — which in its general facies and colour it a good 

 deal resembles. It is, however, considerably larger than that 

 species, its umbilicus is (proportionately) less open, its spire is 

 perhaps even still more depressed, and its surface is both less 

 shining and more appreciably sculptured. 



Y 2 



