OF CONCHOLOGY. 275 



dimidium longitudinis testse aequante ; alba, costis transversalis 

 nigra, apertura alba. 



Dimensions. — Long. 6J, diam. 3 mill. 



Locality. — Paumotus. 



Shell fusiforraly ovate, attenuated at both ends, longitudinally 

 obsoletely nodosely ribbed, ribs 10-12, encircled transversely 

 ■with three nodose ribs, whole surface very minutely granulosely 

 decussated by stride ; columella smooth, outer lip tridentate 

 within ; aperture about one-half the length of the shell ; white 

 transverse ribs black, aperture white. 



This species may be compared Avith E. zonata, Rve. Most of 

 the specimens we have seen are much worn, in which state the 

 color of the transverse ribs is re'ddish and no trace of the decus- 

 sating striae remains. 



Engina variabilis, Pease. Plate 23, fig. 9. 



Description. — T fusiformi, utrinque attenuata, longitudinaliter 

 sulcata, costis duabus nodosis cingulata, interstitiis sulcatis, un- 

 dique transversim striata ; spira acuta ; apertura dimidium long- 

 itudinis testae aequante, angusta, recta; nigra, nodis albis, inter 

 costis luteo maculata, apertura violacea. 



Dimensions. — Long 9, diam. 5 mill. 



Locality. — Paumotus. 



Shell fusiform, attenuated at both ends, longitudinally grooved, 

 encircled by two nodose ribs, of which the upper is much the 

 most prominent, interstices grooved, the whole surface trans- 

 versely striate ; spire sharp ; aperture one-half the length of the 

 shell, narrow, straight ; color black, nodules white, between the 

 ribs spotted with yellow, aperture purplish. 



Engina STRIATA, Pease. Plate 23, fig. jK). '^ 



Description. — T. fusiformi-ovata, utrinque acuta, in medio sub- 

 angulata, longitudinaliter obsolete costata, transversim costis 

 duabus nodulis cingulata, utrinque transversim inciso-striata ; ^^ ^ 

 columella recta; alba, costaram longitudinalium latere sinistro "^t-T^ 

 fusco strigatis, apertura pallide violacea. "^ 



Dimensions. — Long. 8, diam. 5 mill. 



Locality. — Paumotus. 



Shell fusiform ovate, sharp at both ends, somewhat angular 

 at the middle, obsoletely ribbed longitudinally, transversely en- 

 circled by two prominent nodose ribs, somewhat compressed, the 



