14 2 Bulletin 29 306 



suture. Evidently our shell is distinct from the unfigured A. 

 polita since Gabb emphasizes its channeled suture not present in 

 ours. 



Locality. — (Exp'd '16) Bluff 3, Cercado de Mao. 



E. S UPER -FA MIL Y G YMNOGL OSS A 



Genus M elan ell a Bowdich 



Mela?iella (Eulinia) cercadica, n. sp 



Plate 25, Figure I, 

 Eulima acicularis Gabb, Trans. Amer. Phil. Soc, vol. 15, p. 227, 



1373- 

 Not I'.ulima acicularis A. Adams, Ami. and Mag. Nat. Hist., p. 125, 

 1861. 

 As Gabb's name was preoccupied by Adams, a new name is 

 needed and cercadica seems appropriate. Gabb's species robusta 

 was also preoccupied by Adams in 1861. 



M. cercadica resembles the recent bifasciata d'Orb. {acuta 

 Sowerby) but the latter is not constricted at the suture, is small- 

 er, and has a spiral line of color, whereas our shells show traces 

 of a band of fulvous yellow in the constricting zones. 

 Locality— (Exp'd '16) Bluff 3, Cercado de Mao. 



Melanella (Eulima) maoica, n. sp. 

 Plate 25, Figure 2 



Shell small, moderately slender, solid, polished; whorls elev- 

 en, the apical large, knobbed, the second convex, projecting; sub- 

 sequent whorls straight, their width two and a third times their 

 axial height; suture distinct, slightly overhanging the following 

 whorl; aperture small, outer lip thin, a little inflated, oblique, ar- 

 cuate, slightly produced anteriorly. Length of shell 4.10, of 

 body whorl 1.50, of aperture .90, greatest diameter 1.10 mm. 

 The most characteristic feature of this species is its large knobbed 

 nucleus. 



Locality — (Exp'd '16) Bluff 3, Cercado de Mao. 



