2 KOBELT : ON THE LAND SHELLS OF GIBRALTAR, 



only dead or quite young specimens, and Fruticolce none at all. 

 It is necessary to collect in such places at different seasons in 

 order to get the fauna completely. Besides this circumstance, 

 collecting in Gibraltar is connected with considerable difficulties. 

 The gardens covering the foot of the rocks on the western side 

 are practically inaccessible to the stranger who only stops a short 

 time and makes no acquaintances. In the surroundings of the 

 fortifications on the other hand the sentries prevent people from 

 straying beyond the foot-paths or from lifting up a stone. In 

 many of these parts it is only possible to collect clandestinely. 

 A British subject might easily procure a permission from the 

 authorities to pursue his researches, and might in all probability 

 discover still other species. 



I should like to draw the attention of any one who would 

 care to take up his quarters at Gibraltar, to the opposite Monkey- 

 Mount in Marocco, which has not yet been examined, as it no 

 doubt offers an equally interesting fauna. Hunting parties 

 frequently make excursions to the opposite shore, and it might 

 in this way not be difficult to visit this mountain. The territory 

 lying between this mountain and Tetuan, called the "Sierra 

 Bullones," still awaits the explorer. The beautiful jl%//^ Sultana 

 Mor., or some species allied to it, and specimens of the subgenus 

 Anchistotna might be found there, which would fully compensate 

 the trouble. On the chalk hills between Gibraltar and Ronda 

 also, nobody has as yet collected. The sea fauna of the bay of 

 Gibraltar being likewise very rich and comprising many peculiar 

 species (I found there among others, Panopcea Aldrovandii, 

 Mytilus perna, Ungulina rub? a, Mathilda quadricarinaia, 

 remarkably fine specimens, Mesalia varia, a beautiful and 

 perhaps new Turritella, Natica filosa, Fusus loftgurio, Cassidaiia 

 tyrrhena, &c.) I can warmly recommend Gibraltar to the 

 conchologist as a winter residence. 



The fauna of Gibraltar is very peculiar, many characteristic 

 species of the Mediterranean shores being here wanting. The 

 genus Leucochroa for instance, is represented neither in Gibraltar 



J.C, iv., January, 18S3 



