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TWO NEW LAND -SHELLS FROM TENERIFE. 

 By J. H. PoNsoNBT, F.Z.S., etc., and E. E. Stkes, F.Z.S., etc. 



Read December 8th, 1893. 



The two species which we have now the pleasure to (Tescribe owe 

 their discovery to the energy of Colonel Parry, who collected them 

 when at Tenerife in the spring of this year (1893). 



Helix (Gon'ostoma) Paeeyi, n.sp. 



Testa depressa, lenticularis, cinereo-comea parum solida ; anfr. 4^ 

 convexi, regulariter accrescentes, sutura sat profunda discreti, striis 

 elevatis oblique sculpti, ultimus versus aperturam, et infra et supra 

 peripheriam, obtuse carinatam, ruguloso plicatus ; umbilicus mcdiocris 

 profundus ; apert. rotundata, fere horizontalis, margines callo tenui 

 juncti, basatis incrassatus reflexus. Diam. maj. 13, min. 11*6 mm.; 

 alt. 4 mm. JIab. — Icod, Ins. Tenerifge. 



Differs from its nearest ally, H. hisptdula, Lam., in its unifonnly 

 smaller size, more convex and more tightly coiled whorls, and more 

 open and perspective umbilicus ; it is also less sharply keeled than 

 that species. Found by Colonel Parry in considerable numbers. It 

 seems strange that this form should have hitherto escaped the observa- 

 tion of collectors. 



Helix Parryi, u.sp. Pupa pyramidula, n.sp. 



Pupa pyramidtjla, n.sp. 



Testa parva, conica, unicolor fusca, tenuis; anfr. 5^ tumiduli, 

 longitudinaliter levissime striati, ultimus inflatus, magnus ; spira 

 obtusa et quasi-planata, apex minutus ; apert. semiovalis, prope in- 

 sertionem marginis dextri plica tenui, oblique intrante, munita ; 

 margines distautes, undique breviter reflexi ; umbilicus mediocris, 

 infundibuliformis. Long. 3-5, lat. 1 -5 mm. Eah. — Icod, Ins. Tenerifse. 



Differs from Pupa umhilicata, Drap., in its shape, being pyramidal 

 rather than cylindrical; it is also of a darker colour than the form 

 of that species found at Tenerife. P. pyramidula has also one whorl 

 less, and the whorls are not so inflated; the tooth is more slanting 

 and the mouth more oval ; moreover the columellar lip is more nearly 

 in a line with the axis of the shell. 



The types of both species are in Mr. Sykes' collection. 



