KOBELT : ON THE LAND SHELLS OF GIBRALTAR. 5 



to whose inspection I submitted my HyalincE. I 

 nevertheless felt inclined to describe them as new, on 

 account of the peculiar shape, the very small apex and 

 the disproportionately large last whorl which charac- 

 terize them unmistakably. I also believe that very 

 little is wanting of the full growth, or else the last 

 whorl would not increase so rapidly. The only species 

 with which Hyalina Dauthezi might be compared is 

 Hyalina Djurdjurensis Debeaux, the latter however 

 has a diameter of i6 mill., and it was distinctly 

 described as having a flat suture without a margin. 



I name this species in honor of Mr. G. Dauthez, 

 Engineer at Gibraltar, who has chosen the natural 

 history of the rock as his life study. 



5. Patula umbilicata Montagu. 



Pretty common in the upper regions of the rock. 



6. Helix (Gonostoma) lenticula Fer. 



Common under stones and in rock crevices. 



7. Helix (Gonostoma) calpeanaMorelet. 



I have only collected about 20 specimens of this 

 species in rock fissures near the military hospital, and 

 according to my knowledge it is confined to Gibraltar. 

 I have not met with it higher up on the rock, but in 

 the gardens it might be found more frequently, espe- 

 cially at the foot of old walls. My largest specimens 

 are 13.5 mill, in diameter. 



8. Helix (Tachea) Coquandi Morelet var. Ellioti m. 



Differt a typo testa minore, raro 20 mill, cuperante 

 temiiscula. 



There occurs a peculiar smaller form of H. Co- 

 quandi on the rock of Gibraltar which justly deserves 

 a name to itself Striped specimens, which in many 

 respects incline towards H. splendida, were only seldom 

 met with, and then there were besides the five bands, 



