NATURAL SCIENCES OF PHILADELPHIA. 173 



hesitated to consider this one character sufficient to indicate a new genus in 

 a single species. 



Hah. Hong Kong. Wm. Stirapson, M. D. 



OLIGASPIS* n. g. 



Corporis segmenta 9 ; antennae brevissimas, quinque articulatae. Oculi aggre- 

 gati. 



This genus is allied to Zephronia, from which it differs entirely in the num- 

 ber of its segments. The antennae are very short and thick. 



0. PUNCTICEPS. 



O. dilute olivaceo brutmeus, capite et segmento cephalico castaneis ; capitis 

 superficie anticafere rude punctata; segmeutis postice obscure rubido-brun- ' 

 neo marginatis. 



The head superiorily is emarginate and a little swollen at its external 

 angles so as to give somewhat of a reniform appearance. Its vertex is smooth. 

 Many of the scuta have a large dark olive blotch or even blotches. Their sur- 

 face is mostly smooth and polished. The last scutum is very closely and dis- 

 tinctly punctate. The male genital organs have a pair of very heavy forceps 

 on each side, resembling the claws of a crab. These are placed at an angle 

 with one another, their bases attached to opposite sides of a broad plate. On 

 one side of their lower part is a curious surface corrugated by close, straight, 

 parallel furrows. 



Springing from the top and centre of this broad plate are a pair of straight 

 diverging small processes, with a conical central tongue or process. 



I have never had an opportunity of examining a female. For figures, 

 illustrating this species, see my forthcoming Monograph of North American 

 Myriapoda. [Trans. Philos. Soc] 



"Hab. Port Natal. Rev. Alden Grout. Mus. A. N. S. 



On a New Genus of VE3PESTILI0NID2E. 



BY H. ALLEN, jM. D. 



The genus Synotus, founded by Keyserling and Blasius,f had for its type 

 the common Barbastelle. But Dr. GrayJ and Buonaparte, having previously 

 defined Barbastellus as a distinct genus, it follows that Synotus is but a syn- 

 onym of Barbastellus. In my memoir on N. A. Bats,|| I followed Wagner,^ 

 who placed both the American and European species under Synotus. A more 

 extended study of this group has convinced me that this course is untenable. 

 There is not sufficient evidence in the diagnosis of Synotus, as given by K. 

 and B., to warrant the conclusion that it was intended to apply to the Amer- 

 ican species ; and since they cannot be received by either Plecotus or Vesper- 

 tilio, it is necessary to propose a new genus to include them. 



CORYNDRHINUS, n. g. 



Skull slightly depressed at vertex ; supra-occipital region inflated, sides 

 inconspicuous ; frontal bones without crest. Nasal bones, broad, flat, 

 not depressed ; median fossa marked, linear ; superior border of anterior 

 nares rounded ; summits convex and somewhat higher than orbital processes of 

 superior maxillae. The latter processes are swollen, and extend anteriorly 



* Oxiyoc d(T7ri;, Scutum. * 



1 Wirbel thier* Europas, 1S40, 55. 



J Zoological Journal, ii. 1826, 243. 



$ Fauna Italica Fasiculo 15, tab. 15, 1836. 



j Monag. N. A. Bats, Smithsonian Inst.. June, 1864. 



f Schreb. Sang. y. 1855, 719. 



1865.] 12 



