Part 1. 



PHILIPPINE LAND SHELLS BARTSCH. 



31 



AMPHIDROMUS ENTOBAPTUS CULIONENSIS, new subspecies. 



Plate 1, fig. 6 ; plate 14, figs. 4-9 ; plate 15, figs. 1-3. 

 Shell much smaller than typical Amphidromus entohaptus ento- 

 haptus, and much less inflated than Amphidromus entohaptus husu- 

 angensis. In general shape it resembles Amphidromus entohaptus 

 gracilis, but is of a more uniform paler coloration than that race. 

 ' We have seen 21 specimens which were collected by Dr. D. C. Wor- 

 cester on the Menage Scientific Expedition on Culion Island. These 

 yield the following data : 



Number of 

 whorls. 



6.1 



6.2 

 5.7 

 6.1 

 l 5.8 

 5.7 

 5.5 

 6 

 6 



6.1 

 5.7 

 5.6 

 5.6 

 5.8 

 5.7 

 5.5 

 6 



5.6 

 6 



6.1 

 5.2 



Length in 

 mm. 



2 5. 8 



3 6. 2 



4 5. 2 



44.7 

 44.6 

 42.6 

 46 

 45.8 

 41.2 

 40 

 44.9 

 38.9 

 47.8 

 48 



40.5 

 45.6 

 46.3 

 40.6 

 38.6 

 43.5 

 41.6 

 '48.2 

 46.1 

 36.4 



Diameter in 

 mm. 



2 43. 42 



3 48. 2 



4 36. 4 



24.8 

 24.4 

 23.4 

 25.7 

 '25.6 

 23.7 

 24 



25.5 

 22.6 

 27.1 

 25.7 

 24.1 

 26.8 

 26.1 

 24.7 

 23.2 

 24.8 

 24 

 27 



24.7 

 23.7 



2 24. 83 



3 27.1 



4 22. 6 



i Type. 3 Average. 3 Greatest. * Least. 



The type is Cat. No. 215642, U.S.N.M. 



AMPHIDROMUS ENTOBAPTUS CORONENSIS, new subspecies. 



Plate 15, figs. 6-8. 



Amphidronnts entohaptus contractus von Mollendokff, Abhand. Nat. Gesel. 

 Gorlitz, vol. 22, 1898, p. 148, nomen nudum. 

 The shells from Coron Island of the Calamianes Group have the 

 shape of Amphidromus chloris Reeve ; that is, they are very much 

 more slender than typical Amphidromus entohaptus. Of course the 

 typical deep coloration at once proclaims them members of the 

 Amphidromus entohaptus complex. 



