Parti. PHILIPPINE LAND SHELLS BARTSCH. 3 



The same year he published his Versucheiner Anordung der Heli- 

 ceen nach naturlichen Gruppen. 1 In this he recognized Amphi- 

 dromus as a subdivision of Bulimus (pp. 146-147), and referred the 

 above-mentioned species to it. Here he also assigned a lot of Helico- 

 styla erroneously to this group. 



Henry and Arthur Adams in 1858 referred 2 Bulimus chloris 

 Reeve, and B. maculiferus Sowerby, to the subgenus Canistrum 

 Klein, which they considered synonymous with Amphidromus 

 Albers and Balea of Blainville. 



In the fourth volume of Pfeiffer's Monographia Heliceorum Viven- 

 tium published in 1859, we find on pages 381 and 382 the references 

 to Bulimus maculiferus Sowerby and Bulimus chloris Reeve, given 

 in his third volume, and in the publications in which these species 

 have been alluded to since that volume was issued, Bulimus sulphu- 

 ratus is lisited under B. chloris. 



In 1867 the volume on Mollusca of Die Preussische Expedition 

 nach Ost.-Asien, by Edward von Martens, appeared. In this 3 (p. 

 351), Bulimus sulphuratus of Hombron and Jacquinot is made a sub- 

 species of Bulimus perversus Linnaeus, and considered quite distinct 

 from Bulimus chloris Reeve. 



The sixth volume of Pfeiffer's Monographia Heliceorum Viven- 

 tium, 1868 (pp. 25-26), cites references to the previous volume and 

 gives the notations listed in our remarks since its publication in 1859. 



Carl Semper, in his Reisen im Archipel der Philippinen 4 de- 

 scribes the anatomic characters for the genus Amphidromus, giving 

 the anatomy of Amphidromus maculiferus Sowerby (p. 146), and 

 illustrating it on plate 14, fig. 1; and on pages 141-149 he cites the 

 places in Mindanao and Bohol from which he has seen specimens. 

 He describes three yellow shells with a single or double varix, which 

 had been given to him and were said to have come from Cebu, but 

 does not bestow a name upon them. 



He also lists Amphidromus chloris Reeve (p. 148), from Zam- 

 boanga, and considers A. sulphuratus Hombron and Jacquinot 

 synonymous with it. 



In 1877 Pfeiffer's eighth volume of his Monographia Heliceorum 

 Viventium was published, and here, as in the previous volumes, he 

 gives the additional references which have been occasioned since the 

 publication of volume 6, in 1868. 



In the same year Joaquin G. Hidalgo published a small paper en- 

 titled Description d'un Amphidromus et d'un Cyclophorus nou- 



1 Malak Blat., vol. 2, 1855. 



2 Genera of Recent Mollusca, vol. 2, p. 143. 



3 Zoologischer Thell, vol. 2. 



4 Zwelter Theil, Wiss. Res., vol. 3, 1873. 



