SALVAOES. 295 



This appears to be by far the rarest of the three Auriculas 

 "which have been detected hitherto at the Salvages, — the few 

 examples which I have seen having been partly received from 

 the Baron Paiva, and partly separated by myself from a mass 

 of the ' var. 7. albescens'' of the A. cequalis which had been 

 obtained by him from those islands. The species may readily 

 be known from the latter by being considerably smaller and 

 less elongate-ovate (or more strictly fusiform), and by the upper 

 one of its two ventral plaits being so far reduced in dimen- 

 sions as to assume the form for the most part, of a minute 

 and isolated tubercle. Its colour too is darker than that of the 

 c&qualis (at any rate as represented at the Salvages), — it 

 being of a pale reddish brown, with a more or less decided violet 

 tinge. So far as I have yet observed, its outer lip is wholly 

 unarmed, or free from denticles. I may just add, however, that 

 the examples of this shell from the Great Salvage (which I have 

 cited as reprenting a ' var. /3. scrobiculata ') are not quite so 

 dark and pm-purascent, on the average, as the Madeiran ones ; 

 and they are likewise a trifle slenderer in outline, and when 

 young more glossy in surface ; but in everything important the 

 two phases are undistinguishable. 



Having given a diagnosis of the A. Watsoni in my notice of 

 it under the Madeiran Group, I need not do more than refer to 

 p. 269 of the present volume for any further particulars concern- 

 ing it. 



6. Auricula Paivana. 



T. ovato-fusiformis, solida, opaca (et plus minus erosa), cre- 

 taceo- aut (interdum) subflavo-albida ; spira breviuscula, conica, 

 anfractibus 5^-6 planis, ultimo elongato, sutura ssepius lacerata ; 

 apertura elongata, plicis 2 instructa, — sc. 1 magna intrante ven- 

 trali, vix supra columellam sita, et altera minore obliqua colu- 

 mellari ; peristomate recto, acuto, marginibus callo nitidiore 

 junctis, dextro simplici, columellari reflexo dilatato. — Long, 

 lin. 2i-3i ; diam. rnaj. vix \\. 



Alexia" Paivana, Pfeiff., Mai. Blatt xiii. 146 (1866) 

 „ „ Paiva, 3Ion. Moll. Mad. 155 {1867) 



Auricula bidentata et Paivana, Wats., Journ. de Conch. 



220 (1876) 



Habitat Salvages ; in ins. Majore ad rupes maritimas, vul- 

 garis. 



This appears to be a most abundant Auricula on the tide- 

 washed rocks at the Salvages, from the larger island of which it 

 has been obtained in profusion by the Baron Paiva ; but I am 

 not aware that it has been observed hitherto in any of the 

 other archipelagos. I am extremely doubtful however whether 



