106 GOBIIDJ-. 



of the other species ; nevertheless they have been referred to three 

 different genera, which would comprise species like E. ophioceplialus, 

 gyrinus, &c. I prefer, therefore, to arrange them according to their 

 natural affinities, without creating unnecessary denominations. 



Synopsis of the Species. 



A. Scales of moderate size, less than fifty in a longitudinal series. 



I. Snout short, broad, flat, depressed, the fonn of the head approaching 



that of Ophioeephalus : Meotris (part.), Bleek. 



1. E. ophioeephalus. 4. E. aporos. 8. E. mogurnda. 



2. E. cantoris 5. E. hoedtii 9. E. macidata. 



(porocephalus). (tolsoni). 10. E. grandisquama. 



3. E. porocephaloides. 6. E. macrolepidota. 11. E. sima. 



7. E. madagascariensis. 



II. Snout of moderate length, the form of the head approaching that of 



Gobius (giuris). 



1. No black spot on the root of the pectoral : Eleotris (part.), Bleek. 

 12. E. gobioides. 13. E. obscura. 15. E. liaaseltii. 



14. E. oxycephala. 



2. A black spot on the root of the pectoral : Butts, Bleek. 

 16. E. butis. 17. E. amboinensis. 19. E. caperata. 



18. E. melanostigma. 



III. Head and body rather compressed, similar in fonn to a Cyprinoid : 



Eleotris (part.), Bleek. 

 20. E. cyprinoides. 21. E. leuciscus. 23. E. cyanostigma. 



22. E. taenionotoptera. 



B. Scales small, fifty and more in a longitudinal series. 



I. Less than twenty rays in the soft dorsal and anal fins. 

 1. None of the rays produced into a filament. 

 a. No ocellated spot on the base of the caud.al. 

 a. None of the bones of the head armed. 

 aa. Vomerine teeth : Philypmis, Val. 

 24. E. dormitatrix. 25. E. lembus. 26. E. lateralis. 



bh. Palate entirely smooth : Meotris (part.), Bleek. 



27. E. gyrinus. 30. E. gjTinoides. 32. E. gua\ana. 



28. E. smaragdus. 31. E. marmorata. 33. E. canina. 



29. E, fomasini. 34. E. periophthalmus. 



/3. A spine at the angle of the praeopercuhun : Culins, Bleek. 

 35. E. fusca 36. E. melanosoma. 



(pseudacanthoponia). 



y. Some of the branchiostegals terminating in a spine anteriorly : 

 Belohranclms, Bleek. 

 37. E. belobrancha. 38. E. tsenioptera. 



h. An ocellated spot on the base of the caudal fin. 

 a. Vomerine teeth : Bostrichthys, Gill. 

 39. E. sinensis. 



