3G6 Dr. A. Giiffiiii on new Species o/Gryllacris 



conclusion. We think that J. gemmacea should be merged 

 in J. juncea. 



Locality. S.W. of Beyt Island. 



(8) Virguhtria 7'umphii, Kolliker. — We have referred two 

 specimens to tiiis species, although they differ in some obvious 

 features, which appear to us, however, to have only quanti- 

 tative importance. Tliey a^ree with V. rumphii in having 

 close-set pinnules with crowded polyps and with peculiar 

 interlocking on the metarachidial surface, in having very 

 numerous undeveloped pinnules (96-120 on each side), and in 

 many other resjjects. Tiiey differ in having 55-70 polyps on 

 a pinnule instead of 40-44, in showing no distinct siphono- 

 zooids (probably because of imperfect tixing), in having a 

 more slender axis, and so on, but they are much nearer to 

 V. rumphii than to any other species. In their very nume- 

 rous polyps they suggest V. multicalycina, Thomson and 

 Henderson, but tlie calices of the latter are exceedingly well 

 defined, whereas tliey are indistinct in those from (Jutch. 



XLVIII. — Two new Species of GryJlacris i/i the Universit// 

 Museum, Oxford. By Dr. ACHILLE Griffini (R. Istitutj 

 tecnico, Genova, Italy). 



I HAVE recently received for identification from the Hope 

 Department, University Museum, Oxford, owing to tlie 

 courtesy of Professor E. B. Poulton, F.R.S., and Mr. R. 

 Shelford, a series of undetermined Gryllaciidae, In a memoir 

 of some length, communicated to the Societa Italiana di 

 Scienze Naturali in Milano at its session of January 31st, 

 1909, I have described the African, Indo-Malayan, and 

 Australian species of this family of Locustodea in the Oxford 

 Museum collection. The following account treats of the only 

 two Neotropical species in this collection ; the species evidently 

 are new to science, and one {Grylluciis longstaffi) is highly 

 remarkable on account of the extraordinary structure of the 

 apex of the abdomen, and of the external genitalia of the 

 male. 



I seize this opportunity to express my sincere thanks to 

 Professor Poulton for permitiing me to examine this interesting 

 collection, and in particular to Mr. R. Shelford for the trouble 

 he has taken in transmitting the specimens to me and in 



