ZOOLOGY OF FERNANDO NOEONHA. 



489 



M. ansulata does not mention the presence of a second white 

 zone on the body-whorl as represented in his figure, but this does 

 occasionally exist. Try on places this species in the synonymy of 

 M. dermestina, Ijm\k., together with ll.cavea, Eeeve, M.Adamsi, 

 Dohrn, M. pulchella, Eeeve, M. pisolina, Lamk., M. hisfrio, 

 Eeeve, and M. consanguinea, Eeeve. A more ridiculous instance 

 than this of the "lumping" of species I have never seen. Tryon 

 never could have examined examples of these various forms, 

 for if he had he would not have united them ; he must have 

 been misled by the figures, or perhaps a little jealousy of non- 

 possession may have influenced him. 



Eeeve's M. leucodesma he says is beyond a doubt the same as 

 M. pardalis, Kiister. From this it is, in my judgment, perfectly 

 distinct ; and the statement that " Eeeve's figure of M. pardalis 

 is a Coltwibella " is sheer guess-work. The shell figured by 

 Eeeve is in the British Museum, and not only is it a Mitra, but 

 correctly identified by Eeeve as H. pardalis, Kiister. "What 

 right had Tryon to make such a statement in the face of Eeeve's 

 description, in which he properly characterizes the shell as a 

 Mitra with four plaits on the columella? Numbers of similar 

 absurdities occur throughout this work of Tryon's, which might 

 have been avoided if more judgment had been used and the love 

 of " lumping " been overcome. 



16. Marginella sagittata, Hinds. 

 Hah. Bahamas to Brazil. 



M. fluctuata, C. B. Adams, from Jamaica, appears to be the 

 same as this species. 



17. Triton Eidleyi, sp. u. (Plate XXX. fig. 1.) 



Testa late fusiformis, albida, obsolete trizonata, zonis supra 

 varices aurantiis ; anfractus normales, superne declives et leviter 

 concavi, ad medium biangulati, inferne coustricti, costis longitu- 

 dinalibus circiter 7 (in anfract. ultimo subtuberculiformibus inferne 

 evanescentibus) instructi, liris spiralibus teuuibus (in anfr. pen- 

 ultimo 7-8) aliisque longitudinalibus tenuioribus concinne can- 

 cellati ; apertura ovalis, alba ; canalis brevis, dextrorsum versus ; 

 columella alba, superne arcuata, vix tortuosa, tuberculis vel liris 

 transversis supra callum tenuem munita ; labrum compresse 

 varicosum, intus liris duodecim in paribus ordiuatis iustructum. 



Longit. 19 milliin., diam. 10. 



LINN. JOURN. — ZOOLOGY, VOL. XX. 38 



