109 



Ceritliium turris Chenu Mail. f. 1913. 



Cerithiuni inter medium Ad. Contr. p. 119. 

 Hab. Jamaica (Ad.) St. Thomas (Riise) Cuba (Sagra.) 

 Sect. 2. lahro ad suturam inciso. 

 260. Triphoris ornatus Desh. 



„T. sinistroi'sa, elougato-turrita, apice acuta, basi 

 angusta, in niedio leviter inflata; anfr. numerosis, planis, 

 biseriatim granulosis; graiiulis superioribus rufis alternis 

 albidis; apertura rotundata, submarginata : siplione posti- 

 cali breviore simplici. Long. 7 — 8 mm." Desh. 



Triphoris ornatus Desh. Enc. meth. 3. p. 1053. 

 (1832.) 



Triphoris ornatus Mörch Cat. Yoldi p. 59. Nr. 1135. 



Cerithium ornatum Desh. Kien. Spec. gen. p. 37. 

 t. 25. f. 2. 



Hab. St. Thomas (Kien., Eiise, Krebs) St. Croix (Krebs.) 

 261. Triphoris decoratus C. B. Ad. 



„Sh. conic, turrited, sinistrorsal : white, dark reddish 

 brown anteriorly, with many large rather Square irregu- 

 lär Spots of the same: with on the upper whorls, two, 

 and on the middle and lovver whorls, three nearly equal 

 Spiral ridges, Avhich are nearly concealed by numeroua 

 large nodules, that are produced by the excessive de- 

 velopment of the intersections of 25 to 28 small trans- 

 versa ridges on each whorl : anteriorly with two additio- 

 nal snialler or less strongly nodulous Spiral ridges: apex 

 very acute; spire with the outlines nearly rectilinear: 

 whorfs 16, planulate; with the place of the suture distin- 

 guished by a deeper groove ; last whorl terminating very 

 abruptly, so as to be concave between the periphery 

 and the canal: aperture ovate-orbicular, modified a little 

 by the penult whorl: canal strongly bent to the right, 

 closed except near the extremity. This shell resembles 

 C. ornatum Desh., but that species has only 10 or 12 

 whorls, its outlines are quite curvilinear, and the last 

 whorl terminates less abruptly." Ad. 



