.■»l'8 Rov. T. K. K. Stebbing on svne Kni'tjiwdical 



Bucktoii's type of P. spinnJa is founded on a niutiUitcd 

 specimen. 



Centrochares ridleyanus, sp. n. 



Cinnamon-brown ; tibise and tarsi ochraceons ; pronofal 

 lateral angles longly, obliquely, forwardly and a little upwardly 

 produced, their margins serrate, their disks finely tuberculale, 

 their apices broadened and spatulate, externally truncate; 

 disk of pronotum percurrently carinate and serrate, as is also 

 the frontal lateral marfrins, posterior pronotal process conically 

 uj)wardly ))roduced near base, its margins longly serrate, 

 more broadly and upwardly produced near apex, with its 

 margins also longly serrate. 



Long. 4 mm. 



llah. Malay Peninsula ; Singapore {H. N. liidlei/). 



Allied to C. horriJiciis, Westw., from which it differs by 

 its smaller size, the narrower and more erect subapical lobe 

 to the posterior pronotal process, &c. 



Genus Micreune. 

 Micreiaie, "Walk. Journ. Linn. Soc. Loud., Zool. i. p. 94 (1856). 



Micreune formidanda. 



Micrewie formidanda, Walk. Jouru. Linn. Soc. Lond., Zool. i. p. Oi 



(1856). 

 Micreune quadrili7iea, Walk. MS. 



Hab. Singapore ; Borneo. 



A specimen labelled by Walker J/, quadrilhiea hom Borneo 

 is in the British Museum, but 1 can find no description of the 

 synonym. 



XLl. — On some .Enigmatical Names in Concholoi/y and 

 Fycnoqonoloqy. By the llev. TliOMAS R. R. Stebbing, 



m.a.,"f.r.s. 



For reasons which they think satisfactory, some naturalists 

 give references so curtly that those who wish to consult the 

 works referred to find the task exceedingly troublesome. 

 For instance, in a recent volume Neritine, Lamarck, 1809, is 

 rejected in favour of a later name, presumably on tlie ground 

 that Neritine is only a French word ; but neither is that 

 stated nor is any clue given as to which of Lamarck's 



J 



