284 AMERICAN JOURNAL 



Garrett, and may be relied on as correct. He had opportunity 

 of observing a number of individuals in their natural habitat, and 

 examining them confined. The animal lives in the upper region 

 of the laminarian zone, on branched coral, but usually found 

 under loose stones, on mud and sandy bottom, at low water mark. 

 The color of the above is similar to that of its shell, of an oliva- 

 ceous or brownish olive, reticulately veined with dusky, locomo- 

 tive disk and tentacular appendages pale. The first is large, 

 and cannot be wholly retracted beneath the shell, it is oblong, 

 rounded behind, thick and fleshy, ciliated around the margin, 

 and slightly tuberculated on the posterior upper portion. 



When expanded, three hirsute cylindrical tapering cirrhi pro- 

 ject from each side of the shell, which are attached to the upper 

 surface of the foot, and at the outer base of each is a minute 

 arborescent appendage. 



The mantle is margined, with a single series of pinnate cirrhi, 

 which, when the animal is in motion, are recumbent on the mar- 

 gin of the shell. Head proboscidiform, well developed, lips 

 wrinkled, mouth elliptical. 



Tentacles very long, slender, tapering and hirsute. Two arbo- 

 rescent appendages in front of the tentacles. Eyes on hirsute 

 pedicels, at the hinder base of the tentacles. A siphon projects 

 on each side of the neck, the left incurrent and the right excur- 

 rent. 



Gena rosacea, Pease. Plate 24, fig. 1. 



Descrq)tion. — T. oblongo-ovali, convexa, supra prope apicem 

 subdepressa, tenuiscula, concentrice striata, striis elevatis, dis- 

 tantibus, transversim minutissime striata ; labro recto ; spira 

 postica ; anfr. angulatis, vix elevatis ; rubro alboque varie 

 picta ; striis concentricis rubris, spira albida aut flavidula. 



Dimensions. — Long. 6|, diam. 4 mill. 



Locality. — Paumotus. • 



Shell oblong oval, convex, somewhat depressed, on upper side 

 near the apex rather thin, concentrically distantly and elevately 

 striate, transversely very minutely striate; outer lip straight; 

 spire posterior, whorls angulated, slightly elevated ; variously 

 mottled with pink and white ; concentric strise red, spire yellow- 

 ish or white. 



Capulus liberatus. Pease. Plate 24, fig. 2. 



Description. — T. pileiformi, elevata, crassa, alba, transversim 

 tenuiter costata, longitudinaliter striata ; spira oblique convo- 

 luta, disjuncta. 



Dimensions. — Long. 9, diam. 7 mill. 



Locality. — Paumotus. 



