256 MONILEA-SOLANDERIA. 



M. PHILIPPII A. Adams. T. orbiculato-conoidea, umbilicata, 

 sordide cornea, fusca radiatim picta; anfr. convexiusculis, cingulis 

 transversis, a3qualibus, crenulatis, interstitiis longitudinaliter striatis 

 ornatis ; margine umbilici callo spirali, fusco, radiatim striata cincto ; 

 columella in medio sinuata, ecallosa, antice obsolete bituberculata. 



(A. Ad. 1. c. p. 39.) 



China Seas. 



The species most nearly resembling this is the T. belcheri of 

 Philippi, which I imagine is the T. calyculus of Wood. (Ad.) 



M. PHILIPPIANA Dunker. 



Shell small, rather solid, conoidal, umbilicate; whorls 5i, plano- 

 convex, the last and the penultimate subangulate, encircled by 

 spiral crenelliferous costulse, finely striated in the interstices only 

 visible under a glass; last whorl rather biangulate, with three 

 larger median ribs ; base convex, ornamented with about 10 small 

 crenated equal ribs ; umbilicus pervious, with a crenated margin, 

 provided with a spiral rib inside ; aperture subrotund ; color pale 

 gray, umbilical margin white, the riblets, especially the larger 

 punctate and articulated with black. 



Alt. 4, diam. 6 mill. (Dkr.} 



Satnoan Archipelago. 



Monilea Philippiana DKR., Malakozool. Bl. xviii, p. 170, 1871. 

 An unfigured species, allied in sculpture and coloration to Tr. 

 preissianus. 



M. TENUILIRATUS Dunker. 



Shell orbiculate-convex, depressed conoidal, perforate, very thin, 

 pellucid, shining, whitish, variegated and spotted with pale ashen 

 and reddish ; whorls 7, convex, moderately increasing, the last 

 subangulate ; base convex, perforated by a narrow umbilicus, with 

 a white spiral rib terminating in a small concave lamina ; aperture 

 subrotund, lip acute ; columella a little thickened. 



Alt. 6, diam. 10 mill. (Dkr.) 



Samoa Islands. 



Trochus tenuiliratus DKR., Mai. Bl. xviii, p. 168, 1871. Allied 

 to T. vitiligineus Mke. 



Section SOLANDERIA Fischer, 1880. 



Solanderia FISCHER, Coq. Viv., Monogr. Trochus, p. 417 (1880) ; 

 Man. de Conchyl., p. 824. 



