OP CONCHOLOGY. 65 



Long. 25. Diam. 4 mill. 



Hah. Insl. Oahu. 



Shell elongate turrited, slender ; whorls 15, encircled round 

 the upper part by a conspicuous nodose rib, which is bordered 

 on either side by a groove, whorls between, concave, finely 

 arcuate, striate longitudinally and nodosely crenulate above, 

 next the groove. Color of rib white, remaining portion of the 

 whorls pale straw color. 



Closely allied to T. nebuhsa, Lorois, Jour, de Con. 1858, p. 

 90, pi. 1, f. 4. 



As that name is preoccupied, both by Sowerby and Keiner, 

 the above will take its place, should it prove to be the same 

 species. 



T. SUFFUSA, Pease. 



T. subulata, pallide carneo suffusa ; anfractibus, fere planis, 

 subconvexiusculis, transversim obsolete tenuiter striata, sulco 

 pertuso superne divisis ; sutura subacuta, lacerata ; apertura 

 oblongo-ovata, subeffusa ; columella subrecta, laminata. 



Long. 30. Diam. 9 mill. 



Hah. Lisl. Oahu. 



Shell subulate, suffused with pale flesh color ; whorls nearly 

 flat, very slightly convex, transversely obscurely finely striate, 

 divided at the upper part by a pricked groove ; suture somewhat 

 acute, ragged within ; aperture oblong ovate, slightly effuse ; 

 columella almost straight, laminate. 



May be compared with T. albida, Gray, inhabiting Australia. 



T: ROSACEA, Pease. 



T. aciculari, gracilis ; anfractibus longitudinaliter valde pli- 

 cato-costatis, interstitiis profunde sulcatis, infra suturam Isevi- 

 bus ; apertura oblonga, parva, angusta ; columella subrecta ; 

 costis albidis, interstitiis, columella, aperturaque, rosaceis. 



Long. 20. Diam. 4 mill. 



Hah. Insl. Oahu. 



Shell acicular, slender ; whorls longitudinally strongly pli- 

 cately-ribbed, interstices deeply grooved, except a short space 

 beneath the suture, which is smooth ; aperture narrow, oblong, 

 small ; columella nearly straight ; ribs whitish, interstices, colu- 

 mella, aperture rose pink. 



Approaches T. roseata, Ad. and Rve. It is more slender, 

 ribs larger, different in color, and interstices between the ribs 

 grooved, instead of clathrated. The latter character, however, 

 is altered in " Con. Icon." from the original, which, however, is 



