nilsson’s goby. 
269 
CRYSTALLOGOBIUS NILSSON1I. 
Fig. 72. 
Body during life highly transparent, with a row of dark chromatophores, in most cases one for each ray , on 
each side of the bases of the second dorsal , caudal and anal fins, and at the lower margin of the belly proper. 
Three or four small spots ( consisting of several pigment- cells) on each side of the belly, and ( in the males) a row 
of chromatophores on the under surface of each, of the two branches of the lower jaw, the articulation of which 
is marked in both sexes by a black spot. Vertebrae 29. 
Fig. 72. 
/ 
Cry stallo gobius Nilssonii. After Collett, a — c, magn. 2 diam.; d — f, magn. 6 diaru. a: adult male, in the spawning-season; 
b: young male; C: female, with ripe roe; d: head of an adult male, during the spawning-season; 
e: the same, seen from in front; f: head of a gravid female. 
R. br. 5; D. 2|19 — 20“; A. 20— 21 & ; P. 29—30; V. °; 
1 6 
C. x + 1 1 4 - x. 
Sgn. Gobius linearis, v. Dub., Kor., Ofvers. Vet.-Akad. Forli. 1844, 
p. 111. 
“ Sometimes 21, according to v. Duben and Koren. 
Gobius Nilssonii, v. Dub., Ivor., ibid. 1845, p. 11; Vet.-Akad. 
Hand. 1844, p. 53, tab. II, fig. 3; Nilss., Skand. Fn., Fisk., 
p. 227 ; Gthk (Go biosoma), Cat. Brit. Mas., Fish., vol. Ill, 
p. 86; Coll. ( Latrunculus ), Forh. Vid. Selsk. Christ. 1872, 
p. 9 (sep.); Blkr (Cristallogobius), Arch. Neerl. Sc. Exact., 
b 
