680 PROCEEDINGS OF THE NATIONAL MUSEUM. 



west coast to Westport and Greymouth. Another fact pointing in 

 the same direction is found in the distribution of Armadillo speciosus, 

 a terrestrial isopod. This' is known from the North Island (Bay of 

 Islands, Dana, and Wellington, Hutton), and I have specimens from 

 Nelson; but I have never heard of it occurring in the southern part 

 of the South Island." On either side of Cook Strait (Wellington, 

 Pelorus River) specimens were found which show a marked approach in 

 the form of the rostrum, antennal scale, etc., to P. zealandicus. 



Paranephrops tenuicornis Dana, from fresh-water streams about the 

 Bay of Islands, northern New Zealand, is described as having a short 

 point or tooth on the inner border of the antennal scale, near the apex, 

 and the lower margin of the hand spinuli-scabrous, but not seriately 

 spinous. It is probably the same species as P. planifrons. 



List of specimens examined : 



Karaka, Manukau Harbor (North Island), four males, three females 

 (Colls. Mus. Comp. Zool. and Dunedin Mus.) ; Puriri Creek, River Thames 

 (North Island), three males, four females (Colls. Mus. Comp. Zool. and 

 Dunedin Mus.) ; Roto-Iti (North Island), eight males, one female (Colls. 

 Mus. Comp. Zool. and Dunedin Mus.) ; Napier (North Island), one male, 

 one female (Coll. Dunedin Mus.) ; Wellington (North Island), three males, 

 four females, four young (Coll. Dunedin Mus.); Pelorus River (South 

 Island), two males, three females (Coll. Dunedin Mus.); Nelson (South 

 Island), three males, two females (Colls. Mus. Comp. Zool. and Dunedin 

 Mus.); Greymouth (South Island), one female (Coll. Dunedin Mus.). 



PARANEPHROPS ZEALANDICUS (White). 



Astacus zealandicus White, Proc. Zool. Soc. London, Pt. 15, p. 123, 1847; List 

 Crust. Brit. Mus., p. 72, 1847 (no description); Ann. Mag. Nat. Hist., 2d ser., 

 I, p. 225, 1848; Zool. "Erebus and Terror," pi. n, fig. 2, 1874. 



Paranephrops zelandicus Miers, Zool. "Erebus and Terror," Crust., p. 4, 1874. 



Paranephrops zealandicus Miers, Cat. Stalk- and Sessile-eyed Crust, of New Zea- 

 land, p. 73, 1876; Ann. Mag. Nat. Hist., 4th ser., XVIII, p. 413, 1876; Trans, 

 and Proc. New Zealand Inst., IX, p. 476, 1877. 



Paranephrops neo-zelanicus Chilton (in part), Trans, and Proc. New Zealand 

 Inst., XXI, p. 249, 1888. 



Types in British Museum (Miers). 



In P. zealandicus the chela is much shorter and broader than in 

 P. planifrons, and it is furnished with conspicuous dense tufts of silky 

 hair, disposed in longitudinal rows. The upper margin of the hand is 

 armed with a series of prominent spines, continued as a double row on 

 the margin of the dactylus. The lower margin of the hand is furnished 

 with a double row of shorter spinous teeth. The outer face of the hand 

 is provided with a few tubercles, which seldom develop any spinous 

 points; the inner face bears two longitudinal rows of short teeth. 

 The rostrum is armed on e ich side with small, blunt teeth, usually five 

 in number, but in some individuals three, four, or six; the inferior 

 edge is either unarmed or else provided with one or two acute teeth ; a 

 median carina runs over the gastric area, ceasing abreast of the ante- 



