1. GOBIXJS. 3 



** Ventral fins close together, but more or less coiTvpletely disconnected. 



Eyes very close together and very prominent. 



Teeth erect in both jaws 12. PERiopHTHAiiMUS, p. 96. 



Eyes very close together and very prominent. 

 Lateral teeth of the lower jaw horizontal 13. Boleophthalmus, p. 101. 



Eyes not prominent; anal papilla distinct 14. Eleotris, p. 105. 



Head and body compressed; anal papilla ab- 

 sent 15. ASTERROPTERYX, p. 132. 



Second Group : Amtlyopina. 

 Anterior teeth very strong 10. Amblyopus, p. 133. 



Third Group : Trypauchenina. 



Ventrals united into one disk 17. Trypauchen, p. 137. 



Ventrals completely disconnected 18. Trypauchenichthys, p. 137. 



Fourth Group : CalliouyTuina. 



GiU-openings of moderate width ; prseopercu- 



lum not armed 19. Platyptera, p. 138. 



GiU-openings reduced to a small opening ; prse- 

 operculum armed. None of the ventral rays 

 detached. 20. Callionyjius, p. 138, 



The outer ventral ray detached 21. Vulsus, p. 151. 



Ap2>endiv. 



Ventral fins united. One short dorsal fin. Body 

 naked Luciogobius, p. 152, 



Ventral fins separated, 1/4. Two dorsal fins; 

 head compressed into a fleshy crest Oxymetopon, p. 153, 



First Group. GOBIINA. 



Ventral fins united into one disk, or situated close together ; two 

 separate dorsal fins. Vertebrae J-^^. 



1. GOBIUS*. 



Gobius, Artedi, Genera, p. 28. 



Gobius, sp., Cuv. RPgne Anim. 



Chaeturicnthys, Richards. Voy. Sulph. Fishes, p. 54, 



Gobionellus, Girard in Proc. Acad. Nat. Sc. Philad. 1858, p. 168. 



Oxyiu'ichthys, Bleek. Enumer. Spec. p. 120. 



* a. Doubtful species appai-ently allied to Q. niger, G. jpaganellus, or <t. capita, 



1. Gobius guttatiis, Cuv. ^- Val. sii. p. 24; Chiichen. Explor. Alger. Poiss, 



p. 76. — Mediterranean. 



2. limbatus, Cuv. # Val. xii, p. 26. pi. 344.— Nice. 3, 



b2 



