Distribution of the Larvce of Marine Animals. 403 



surface, not present in front of the eyes, on the limbs, rump, 

 or tail. Under surface and inner aspect of limbs dull whitish, 

 not sl)arply defined, the p;reyish bases of the hairs showing 

 through; throat more yellow; scrotum brown. Ears of fair 

 size, rounded, hairy, dark brown. Hands and feet dark 

 brown, rather darker than the olivaceous arms and legs ; 

 hallux present ; sole-pads transversely striated. Tail evenly 

 well haired, blackish, a line along the middle of the lower 

 surface paler brown. 



Skull thickly built, of normal proportions, not so short- 

 muzzled as is described in D. albopunctatus. Nasals 

 anteriorly slightly opened out and separated in the middle 

 line, their most anterior points lateral instead of mesial; poste- 

 rior expansion present as usual. Supraorbital edges rounded, 

 postorbital processes well developed. Palatal foi-amina short, 

 ending opposite the anterior part of the canines. Bullae hio-h 

 and conical. Teeth as usual, the upper premolars oval in 

 section, without diastemata. Molars decidedly larger than 

 in D. alho])unctatus. 



Dimensions of the type (measured in skin) : — 



Head and body 350 mm. ; tail 285 ; hind foot (s. u.) 53 ; 

 ear 30. 



Skull : basal length G5*6 ; greatest breadth 42 ; nasals, 

 length 25, breadth anteriorly 6*5, at middle 5-5, posteriorly 

 10"5; interorbital breadth 15*8 ; intertemporal breadth 9*6; 

 palate length 36"5, breadth between outer corners of m^ 23 ; 

 palatal foramen 4*2 ; combined length of three anterior 

 niolariform teeth 13'6 ; breadth of last molar 5"6. 



This Dasyure, the representative in British New^ Guinea 

 of the D. albopunctatus of N.W, New Guinea, is readily 

 distinguishable from that animal by its mucli greater size, as 

 may be seen by a comparison of the dimensions here given 

 with those of D, albopunctatus published in the ' Catalogue 

 of Marsupials.'' 



Perameles Cockerelli, Rams. 

 S, ?. 0, 6. 



LIV. — Notes and Observations on the Distribution of the 

 Larvce of Marine Animals *. By J. STANLEY GARDINER, 

 M.A. 



In considering the distribution of larvse our object is to ascer- 

 tain how far the pelagic or planktonic larvae of marine animals 



* This paper was read at a meeting of the ' Challenger ' Society ia 

 June last, and is now published by request of several of its members. 



