ORCULA. 21 



Orcula saint -simonis 'Bourguignat' Gourdon (1881). Sub- 

 cylindric, a little elongate, tapering towards the base ; 10 

 slightly convex whorls, suture little marked. Aperture 

 oboval-rounded ; one large, thin superior lamella, two im- 

 mersed columellars, the lower more robust; peristome re- 

 flected, a little thickened. Shell ornamented with spaced, 

 lamellar, sinuous stria?, of a pale corneous or grayish color. 

 Length 5y> to 6, diam. 2y 2 mm. Not common ; Haute- 

 Garonne, Lot-6t-Garonne, etc. (Locard). 



0. saint -simonis was first noticed under the name P. dolio- 

 lum by Saint-Simon (Moll. Pyr. Haute-Garonne, 1876, p. 16, 

 not seen by H. A. P.), who pointed out the differences of this 

 Pyrenean race from typical doliolum. Gourdon (Bull. Soc. 

 d'Hist. nat. Toulouse, xv, 1881, p. 93) adopted, -without de- 

 scription, Bourguigna/t 's name for the form denned by Saint- 

 Simon. Type locality "Tour de Castel-Blancat, environs de 

 Luchon." 



Orcula macei 'Bourguignat' Locard. Very long subcylin- 

 dric, quite strongly tapering at the base; 10 slightly convex 

 whorls, the suture little marked. Aperture relatively small, 

 rounded, a little retracted at the base. One quite strong 

 median lamella above; one immersed columellar, robust and 

 quite arcuate. Peristome reflected, not very thick. Shell 

 ornamented with fine, close, slightly sinuous stria?, of a cor- 

 neous grayish color. Length 5y 2 to 6y 2 , diam. 2 mm. Quite 

 rare ; clus de St-Auban, Brianqonnet, Alpes-Maritimes, env. 

 de Lyon. 



The following are on p. 324 of the Coq. terr. separate, and 

 on p. 212 of the Annales: 



Orcula bourguignati 'Mace' Locard. Subcylindric, short 

 and squat, tapering quite strongly at the base. Eight slightly 

 convex whorls, the suture little marked. Aperture oboval, 

 rounded at base. One moderate superior lamella, quite strong 

 and very arcuate ; two immersed columellars, the lower more 

 robust. Peristome expanded, reflected, not very thick. Shell 

 light corneous, ornamented with fine, spaced stria?. Length 5, 

 diam. 2% mm. Rare; Brianqonnet, clus de St-Auban, Men- 

 ton (Alpes-Maritimes). 



Orcula macrotriodon 'Bourguignat' Locard. Small, cylin- 

 droid, very short and squat, tapering at the base. Eight quite 

 convex whorls, the suture marked. Aperture somewhat 



