172 VERMETUS. 



the same species. The variety (below) is still more like the F. 

 oereus, which perhaps will itself prove to be merely a variety 

 when more specimens have been compared." MORCH. 



Yar. DILATATA, Morch. Whorls a little flattened, suture 

 depressed, dilated, the strong tran verse rugae approximating. 

 This variety is from the Red Sea, to which locality the type also 

 probably belongs. 



V. CEREUS, Carp. PI. 48, fig. 15. 



Solitary, attached, orange-color, with depressed whitish 

 sutures, the attached side with a series of nodules which, writes 

 Morch, are the impressions of a coral. There is no sculpture, 

 the specimen appearing as though it had been attacked by acid. 

 It is a large species, the penultimate whorl having a diameter of 

 6-7 mill., the aperture of 4-75 mill. Lateral interior lamellae 

 about central. 



Philippines. 



Morch has Vars. GYMNOGASTRA and TENUIS. 



Y. CARINATUS. Quoy. PI. 49, fig. 30. 



Widely irregularly coiled, carinated, somewhat triangular, 

 transversely striated, yellowish ash-color, aperture rounded 

 within. 



Isl. Guam. 



" I have seen forms which I regard as intermediate between 

 F. octosectus, Carp., and F. cereus. Carp., approaching to this." 

 MORCH. 



Y. LILACINUS, Morch. PI. 49, fig. 31. 



Aggregated, subcylindrical, spirally twisted, purplish, whorls 

 contiguous with dilated white suture, longitudinal lirae obsolete, 

 remote, incremental rugae generally remote, stronger towards 

 the aperture, last whorl slightly protracted ; parietal laminae 

 very short (broken?), approximating to the columella, median 



columellar lira somewhat acute. 



Zanzibar. 

 Section PETALOCONCHUS, Lea, 1843. 



Y. SUBCANCELLATUS, Bivona. PL 49, fig. 32. 



Solitary, or more rarely gregarious, reclining, almost entirely 

 affixed, irregularly spiral, with the whorls in contact, brownish, 

 surface subcancellated by longitudinal and transverse strife, the 



