On Two Stroufti/lata from Sioinc in (Jm Pacific. C)^^ 



Incisors a little larger than in lateralis^ tlie whole row 

 10 mm. ill length, about as in hacketti, as conn)arecl with 

 about 9 mm. in lateralis. Secator also slightly larger than in 

 hderalis, nnich smaller than in hacketti. 



Diniciisidns of the iy\>i^ (nicasurcl on the remade skin) : — 



Head and body 500 mm.; tail (iniperfect) ; hind foot 136; 

 car 43. 



Skull : greatest length 94 ; condylo-basai length 90 ; 

 zygomatic breadth 48 ; nasals 30 X 14 ; palatal foramina 7"7. 

 Length of i^ 4-5, of // G'O. Combined length of ms^-^ 

 (unworn) 19. 



(Specimen with j-)^ wliolly and// partly below the bone.) 



Hah. Pearson's Isles, Investigator Group, S. Australia. 



Type. Immature male. B.M. no. 22,4.15.1. Collected 

 25th November, 1920, and presented by Prof. F. Wood 

 Junes. 



While the size and general appearance of i\\\s Petrogah are 

 most like tiiose of P. lateraU.^, the length of the palatal 

 foramina, the comparalively large incisors, the coloration of 

 the tail, and, most of all, the characters of tiie bulky all 

 indicate a relationship to the Mondrain Island species. 



The Museuni is much indebted to Prof. Wood Jones for 

 this interesting specimen, all the more that the maritime 

 ditficulties of getting to the islands are such as to deter any 

 mere casual tourists. 



LXXXVII. — ^i Preliminary Sote on Tivo Strongylata j roni 

 Sioine in the Pacific. By CLAYTON Lane. 



Collected by Dr. F. W. O'Connor, and received through 

 his courteous generosity, the nematodes here rei)orted upon 

 appear to belong to two new species whose interesting- 

 affinities will be more fully dealt with subsequently. 



Globocephalus counorjilii, sp. n. 



Stoutish, short, bursate nematodes; the oral aperture 

 unarmed and dorso-subterminal ; the oral capsule not globular, 

 but elongate autero-posteriurly, and provitled with a pair of 

 rudimentary, basal, subventral teeth projecting into the oral 

 cavity which conforms to the shape and siz(i of the ca[)sule. 

 This latter has two transverse thickenings — one close and 

 parallel to the almost circular oral aperture, tiie other at the 



44* 



