EULIMA. Panama Shells. 199 



291. Eiilima recta, Nov. sp. 



Shell long, ovate conic: ehalcedonic wliite, with a more 

 opaque and another less opaque spiral band at the upper part of 

 the whorls ; with two minute delicate brown spots on the la- 

 brum, and above with several similar pairs of spots at the stages 

 of growth : smooth and shining, with a few very faint trans- 

 verse strias marking stages of growth : apex very acute : spire 

 with the axis straight, with the outlines nearly rectilinear : 

 whorls eleven, subplanulate, with the suture very indistinct ; 

 last whorl long, with the periphery very regularly rounded : 

 aperture narrow and very acute above : labrum sharp, retreating 

 anteriorly : columella stout, nearly straight. 



Mean divergence about 21; length .41 inch; breadth .1 

 inch ; length of spire .285 inch. 



Station. Unknown. 



Habitat Taboga ; C. B. A. ! 



5 specimens were collected. 



292. Eii lima solitaria. Nov. sp. 



Shell long, ovate conic : ehalcedonic white, with a brownish 

 tinge above the middle of the spire : smooth and shining : apex 

 acute : spire with the axis nearly straight, with the outlines 

 nearly rectilinear : whorls eleven, planulate, with the suture 

 very indistinct : last whorl with the periphery very regularly 

 rounded : aperture ovate, acute above : labrum sharp, much 

 advanced along the middle into an elegantly curved edge : colu- 

 mella stout, slightly curved. This may be a STYLIFER. 



Mean divergence about 23 ; length .19 inch ; breadth .055 

 inch ; length of spire .14 inch. 



Station. On Holothuriae. 



The small species of Holothuria, which is very common at 

 Panama and at Taboga, did not furnish any specimens. A 

 larger species, which is more rare, afforded one shell. 



Habitat. Taboga ; C. B. A. ! 



