MONODOXTA. Ill 



M. CRiNiTA Philippi. PI. 22, figs. 41-44. 



Shell globose-conic, narrowly perforate, solid, light cinereous, 

 longitudinally marked with numerous narrow regularly spaced olive 

 lines, the first whorls bright orange colored ; spire conic, eroded ; 

 sutures linear, impressed ; whorls 5, convex, spirally grooved, the 

 grooves shallow, about 5 on the penultimate whorl ; aperture oblique, 

 the lip smooth and thickened within ; columella not very thick, 

 arcuate, white edged, obtusely dentate below ; umbilico-columellar 

 area bright green. Alt 17, diam. 16-18 mill. 



Australian Coasts. 



T. crinitus Phil., Zeltschr.f. Mai, 1848, p. 10^.— Conrhyl. Cab., 

 p. 235, t. 35, f. 9.— Fischer," Coq. Fn-., p. 209, t. 69, f. k.— Tro- 

 ■chocochlea mimetlca Hvtto'n, Jovr. de Co7ich., 1878, p. 32. (Teste 

 John Brazier, Proc. Boy. Soc. Tasm., 1886, p. 200.) 



The orange apex, green columella and narrow longitudinal lines 

 characterize this sjiecies. It is sometimes imperforate. 



M. ADELAiD.E PhiHppi. PL 35, figs. 22, 23. 



Differs from ]\L crinita only in lacking the tooth at the base of 

 the columella ; coloration, sculpture and form identical. 



S. Australian and N. Tasmanian Coasts. 



Troehns adelaidce Phil., Conchyl. Cab., p. 140, t. 24, f. 1. — Diloma 

 aiistralis TEynso^AYooDS, Proc. Roy. Soc. Tasmania, 1876, p. 145. 

 — Trochus {Diloma) adelaidce Brazier, Proc. Boy. Soc. Tasm., 18-^6, 

 p. 199. 



]\i. ODONTis Wood. PI. 62, figs. 66, 67. 



Shell globose-conic, more or less depressed, imperforate or very 

 narrowly perforate ; spirally finely striate, the stride becomins: 

 obsolete on the last whorl, incremental strise microscopic, sharp ; 

 apical whorls white, eroded ; the remainder covered with a regular, 

 elegant, minute reticulation formed by the intersection at right angles 

 of two sets of obliquely descending black or bluish lines ; bodv- 

 whorl subaugulate at the periphery ; outer lip thin, acute, inside 

 green, beautifully iridescent; columella arcuate, not dentate, pearlv- 

 edged ; umbilico-columellar area vivid pea-green. 



Alt. 15-20, diam. 18-20 mill. 



Trochus odontis Wood, lud. Test., suppl., t. 6, f. 37 (1828).— 

 Philippi, Conchyl. Cab., p. 144, t. 24, f. 7. — Fischer, Coq. Viv., 

 p. 313, t. 99, f. 1.— Brazier, Proc. Boy. Soc. Tasm., 1886, p. 198. 



