CANARIAN GROUP. 447 



Genus 12. PUPA, Drap. 

 ( Gibbulina, Beck.) 



Pupa macrogira. 



Pupa macrogira, Mouss., Faun. Mai. des Can. 122 (1872) 

 Pfeiff., Mon. Hel. viii. 349 (1876) 



Habitat Gromeram ; a Dom. Fritsch semel tantum (sc. in 

 statu semifosstti, necnon valde mutilata) lecta. 



A single example of a large Pupa, which is described as 

 being more conical (or less cylindric) than the P. dealbata, was 

 found by Fritsch in Gromera, in a subfossil state and much 

 mutilated, and was treated by Mousson as a new species, under 

 the name of P. macrogira. Having had no opportunity of 

 inspecting the type, it may be sufficient to transcribe Mousson's 

 remarks in which he calls attention to the particular features 

 which serve to separate it from the P. dealbata. 'M. Fritsch 

 n'a trouve qu'un seul individu subfossile, malheureusement 

 mutile, de cette espece, qui ne s'accorde pas avec la dealbata en 

 toutes choses et qui me parait constituer une seconde espece 

 voisine. Les dimensions bien plus fortes, la forme tres ramassee, 

 conico-cylindracee et non simplement cylindrique, le dernier 

 tour un peu concave au-dessus de la ligne dorsale, au lieu d'etre 

 convexe, la base plane, faiblement conique vers le centre, tandis 

 qu'elle est convexe dans 1'autre espece, meme au jeune age, enfin la 

 perforation minime, a la place de Fombilic que presentent les in- 

 dividus non adultes de la dealbata : tous ce caracteres suffisent 

 pour justifier une separation. L'ouverture etant detruite je ne 

 puis en indiquer que le contour quadrangulaire, que dessine la 

 section du dernier tour' (I.e. p. 122). 



Pupa dealbata. 



Pupa dealbata, W. et B., Ann. des Sc. Nat. 28. syn. 321 

 (1833) 



(or SubuKna) striatella, Rang. (Pfeiff., Mon. Hel. vi. 236), a few dead and 

 mutilated examples of which were obtained by Mr. Lowe, during February of 

 1858, amongst some refuse in Mr. Hamilton's garden at Sta. Cruz. The 

 S. striatella is a species which occurs in Princes Island, Senegal, and indeed 

 at various points on the western coast of Africa ; and since it belongs to a 

 type of form (including the West-Indian S. octona, Chemn.) which is emi- 

 nently liable to become transported accidentally through indirect human 

 agencies, it may very possibly have been imported intto Teneriffe, and yet 

 may have not succeeded in establishing itself there. At any rate, as I have 

 no certain evidence on this point, I cannot ignore the species altogether ; but 

 I think it sufficient to draw attention to it in the present foot-note. I have 

 already given, at p. 206, both a diagnosis of the S. striatella and certain 

 observations concerning it; so that I need not now do more than just repeat 

 that it was met with at Madeira, by the late Mr. Bewicke, under circum- 

 stances almost exactly similar to those under which it was collected at 

 Teneriffe, namely (dead and somewhat decorticated), in a garden near 

 Funchal. 



