PLEUKONECTIN.E 



357 



Platessa lavis. White, 1851, List. Brit. Anira., Fish., p. 99. 

 Pleuronectes gilli, Steindachner, 1S68, SitzBer. Akad. Wiss. Wien, Iv 

 Microstomus kitt, Jordan and Goss, 1889, Rep. U.S. Com, Fish., xi 



Evermann, 1898, Bull. U.S. Nat. Mus., xlvii (3), p. 2654. 

 Cynicoglossus microcephatus, Collett, 1903, Vid.-Selsk. Forh., (1902), p. 102. 

 Pleuronectes {Microstomus) microcephalus, Danois, 1913, Ann. Inst, oceanogr. Paris, v (5), p. 99, 



1 (I), p. 1004. 



, (1886), p. 299 ; Jordan ami 



Microstomus 



epbalus, Knipovich, 1926, Trans. Inst. Sci. Explor. North, : 



. p. 141, fig. 



Eggs, Larv,e 



Yo 



iningham, 1889, J. Mar. Biol. Ass., (2) i, p. 13, iigs. 6-9 ; Mcintosh, i8gi, Rep. Fish. Board 

 Scotland, ix (iii), (1890), p. 327, pi. x, figs. 1-5, pi. xi, figs, i, 4, 7 ; Holt, 1891, Sci. Trans. R. 

 Dublin Soc, (2) iv, p. 453, figs. 19-21, 39 ; Holt, 1893, Sci. Trans. R. Dublin Soc, (2) v, p. 89 

 figs. 120-122 ; Canu, 1893, Ann. Stat, aquic. Boulogne, i, p. 130, pi. ix, figs. 3-5 ; Petersen 

 1894, Rep. Danish Biol. Stat., iv, (1893), p. 129, pi. ii, fig. 13; Cunningham, 1896, N. H 

 Market. Mar. Fish., p. 236, figs. 110, 11 1 ; Mcintosh and Masterman, 1897, Brit. Mar. Food-fish. 

 p. 366, figs. ; Kyle, 1898, Rep. Fish. Board Scotland, xvi (iii), (1897), p. 236, pi. xi, figs. 27-32 

 Heincke and Ehrenbaum, 1900, Wiss. Meeresuntersuch., Abt. Helgoland, n.f., iii, p. 226, pi. x 

 figs. 32-34 ; Petersen, 1904, Medd. Komm. Havundersog. Kjob., Ser. Fisk., i (i), p. 9, pi. ii 

 figs. 15-21 ; Ehrenbaum, 1905, in Brandt and Apstein, Nordisches Plankton, I. Eier Larv 

 Fisch. (I), p. 166. fig. 70' ; Allen. 1917, J. Mar. Biol. Ass., (2) xi, p. 229 ; Clark, 1920, J. Mar 

 Biol. Ass., (2) xii, p. 195, fig. 2 ; Schnakenbeck, 1928, Her. d. wiss. Komm. Meeresf., n.f., i\ 

 (4), p. 208, pis. iii, iv ; Schnakenbeck, 1929, in Joubin, Faune Ichth. Atlant. Nord, iii, figs. 



Fig. 259. — Microsiom 



Depth of body 2 to 3 in the length, length of head 4J to 5|. Upper profile of 

 head generally a little concave. Snout naked, shorter than eye, diameter of which 

 i.s 3 to 4i in length of head ; lower eye scarcely in advance of upper ; interorbital 

 ridge and eye-balls not scaled ; postocular ridge scarcely apparent ; anterior nostril 

 of ocular side with a short tube with rather short posterior flap. Mouth distinctly 

 asymmetrical, maxillary extending to below anterior edge of eye or not quite as far, 

 length on ocular side 3I to 4^, on blind side 3^ to 3J in that of head ; lower jaw not 

 projecting, 3 J to 3I in head. Teeth forming a continuous cutting edge ; dental formula 



' Gill-rakers of moderate length, rather stout ; 10 to 12 on lower part 



width of lower pharyngeals 5 to 6 in length ; each with one or two 



* Consult for full list of references. 



1-3 + 8-15 



of anterior arch 



