102 STROMBID^. 



Section II. HARPAGO, Klein, 1753: Anterior and posterior 

 canals both curved to the left, the latter at first crossing the shell 

 transversely. P. rugosa, Sowb. 



Subgenus PHYLLOCHEILUS, Gabb, 1868. 



(Melaptera, Piette, 1876). Fossil only. S. and S. Conch., ii, 

 191, t. 60, f. 74. 



Subgenus HARPAGODES, Gill, 1869. 

 Jurassic and Cretaceous. S. and S. Conch. ,ii, 195, t. 60, f. 93. 



Genus ROSTELLARIA, Lamarck, 1799. 



Animal similar to Strombus. Operculum not serrated on the 

 edge. Shell fusifonn with elevated spire, whorls numerous, 

 smooth, or slightly ribbed; aperture continued into a narrow, 

 usually long, straight or slightly curved anterior canal, and a 

 shorter posterior canal ascending the spire, outer lip thickened, 

 not much expanded, shortly digitated in the typical group. The 

 (restricted) Rostellarias belong to the present epoch or extend 

 at most only into the more recent tertiaries ; but a number of 

 fossil groups are usually considered as belonging to the genus. 

 J?. curia, Sowb. 



? Section MITR^EFUSUS, Bcllardi, 1871. Miocene. Structural 

 and Syst. Conch., ii, 128, t. 47, f. 80. This has been considered 

 a member of the family Fusidae, but Dr. Fischer calls attention 

 to its close resemblance to a young Rostellaria. 



Subgenus RIMELLA, Agassiz, 1840. 



Shell cancellated, anterior canal short, posterior canal rather 

 long, applied to the spire ; lip but little dilated, usually rugose, 

 and having an exterior rib, not digitated. R. crispata, Sowb. 



The few recent species belong to the Philippine Island fauna ; 

 there are also Cretaceous and Tertiary species. 



? Section ISOPLEURA, Meek, 1864. A cretaceous group, having 

 no posterior canal, and perhaps not belonging to this family. S. 

 and S. Conchology, ii, 192, t. 60, f. 76. 



? Section STROMBOLARTA, Gregorio, 1880. An eocene fossil 

 which seems to possess the essential characters of Isopleura ; it 



