Recent Species of Ovulum. 157 



Hab. Mus. nost. 



Desc. Shell ovate, slightly acuminated towards both extremities, but 

 obtuse ; smooth all over, whitish ; upper end of the aperture narrow, 

 linear ; lower end wider and rather eftuse ; edges of both lips quite 

 smooth ; middle of the outer lip thicker than the two extremities. 



Several specimens of this very small species were among Mr. G. 

 Humphrey's stores, but without any information concerning them ; I am 

 therefore unacquainted with its locality. It is certainly nearly related to 

 O. Speltttf but I think sufficiently distinct to be easily recognized. 



Ovulum Seminulum. 

 0. testd oblongd, medio ventricosiusculd, carneo-rubescente; extremitati- 

 bus obtusis; labii externi margine rotundato, edentulo ; labio colu- 

 mellari depresso; long. ^, laU -5%, poll. 

 Hab. in Insulis Maris Pacifici. G. Humphrey. 



Desc. Shell oblong, slightly ventricose in the middle, flesh-red; 

 extremities obtuse ; margin of the outer lip rounded, without teeth ; co- 

 lumellar lip depressed, its inner edge sharp angled. 



One of the smallest species I have seen : a single specimen was pre- 

 served in Mr. G. Humphrey's collection, labelled " Semi-Cowry, Friendly 

 Islands.'* 



Ovulum formicarium. 

 O, testd oblongd, dorso supra medium transversim subcarinato, albd ; 



labio externa edentulo, margine subdepresso ; long. 1^^, lat. ^, poll. 



Hab. in Oceano Indico. G. Humphrey. Mus. nost. 



Desc. Shell white, oblong ; back slightly carinated rather above the 

 middle, outer lip without teeth, its margin rather flattened. 



The smallest species I have seen. From its resemblance to an ant's 

 egg, I have named it 0. formicarium. 



Ovulum Secale. 



0. testd oblongd, angustd, albicante, supernk obtusk mucronatd ; colu- 

 melld superne uniplicatd, subtHts depresso-sulcatd ; labii externi mar" 

 gine rectiusculo, prope basin subangulato ; long. -Z^, lat. -5%, polL 



Desc. Shell oblong, narrow, whitish ; upper end of the lip ob- 



