282 "ENDEAVOUR-' SCIENTIFIC RESULTS. 



Hal). New Zealand, entering fresh water. 

 Described from three specimens, 265-290 mm. in total 

 length. 



2. Rhombosolea plebeia. 



[Sand Flounder, New Zealand Flounder, Tinplate.] 

 Pleuroncctes plebeius, Solander, MS. 

 Rhombus plebeius, Kichardson, in Dieffenbach, Travels in 

 N. Zealand, II, p. 222 (1843). 



Rhombosolea monopus, Gtinther, Cat. Fish., IV, p. 459 

 (1862) ; Hutton, Cat. Fish. N. Zealand, p. 51 ; Hector, 

 t.c. p. 117, pi. IX (1872) ; Steindachner, Sitzber. K. 

 Ak. Wiss., LXXX, Abt. 1, 1880, p. 170; Klunzinger, 

 t.c., p. 407 ; Macleay, Proc. Linn. Soc. N. S. Wales, VI, 

 1882, p. 129. 



Rhombosolea plebeia, Gill, Mem. Nat. Acad. Sci., VI, 

 1893, p. 121; Waite, Rec. Canterbury Mus., I, 1911, 

 p. 203, pi. XXXV; Rec. S. Austral. Mus., II, 1921, 

 p. 157, fig. 257. 



Apsetta thompsoni, Kyle, Proc. Zool. Soc., 1900, p. 986, 

 figs. 1-3. 



Depth of body 1| to If in the length, length of head 

 3^ to 4. Shape of body distinctly rhomboidal; dorsal 

 profile of head straight or a little concave. Blind side of 

 head almost entirely scaly. Snout a little longer than 

 eye, diameter of which is 2| to 3^ times interorbital width 

 and 4 to 6^ in length of head. Maxillary extending to 

 below anterior edge of eye, or not quite as far ; length of 

 lower jaw of ocular side 2f to 3^ in head. Lower pharyn- 

 geals nearly 5 times as long as broad, scarcely triangular, 

 in contact for anterior \ of their length ; teeth cylindrical, 

 the tips rounded, or with a narrow, blunt terminal cusp ; 

 arranged in series along each edge, with a few teeth 

 between these rows. 10 to 14 gill-rakers on lower part 

 of anterior arch. Scales cycloid on both sides of body; 

 85 to 98 in a longitudinal series just above lateral line. 

 Lateral line with a slight curve anteriorly. Dorsal 55-65 ; 

 commencing almost at extremity of snout; first ray 

 deeply split and almost entirely free, next two or three 

 rays decreasingly so, remainder mostly bifid or branched 

 at their tips; 28th to 31st rays longest, If to 2^ in length 

 of head. Anal 38-47. Right pectoral with 11 to 13 rays 

 (9 or 10 branched), naked, or with a few scales on its 



