1861.] DR. A. GTJNTHER ON CENTRAL-AMERICAN FISHES. 3/1 



species belong to genera living near the coast, and freely entering 

 fresh waters. 



The ichthyic fauna of the western coasts of America, between 

 8° north and 8° south of the Tropic of Cancer, offers a remarkable 

 assemblage of types which belong to very different geographical re- 

 gions ; representatives of the faunas of North-west America, of the 

 Pacific coasts of South America, of Japan, and of the Sandwich Is- 

 lands, and of the Atlantic being mixed with a great number of forms 

 peculiar to the area mentioned. 



We give, first, a list of the species contained in Capt. Dow's col- 

 lection : — > 



1. Apogon dovii, n. sp. 



2. Gobius paradoxus, n. ay). 



3. seminudus, n. sp. 



4. Euctenogobius sagittula, n. sp. 



5. Batrachus surinamensis, Bl. Schn. 



6. Blennius brevipinnis, n. sp. 



7. Salarias atlanticus, C. & V, var. (see Gthr. Acanth. iii. p. 243). 



8. Clinus delalandii, C. & V. 



9. maerocephalus, n. sp. 



10. Auchenopterus monophthalmus, n. sp. 



11. Mugil proboscideus, n. sp. 



12. Myxus harengus, n. sp. 



13. Fisttdaria tabaccaria, L. 



14. Halichoeres, sp. — The species appears to be new ; but the 

 single specimen sent is in too bad a condition to admit of a descrip- 

 tion. 



With the exception of the first species, the others are included 

 in my ' Catalogue of Acanthopterygian Fishes,' vol. iii., for which the 

 following accounts have been prepared. 



Apogon dovii. 



D. 6 I ^. A. |. L. lat. 25. L. transv. 3/9. 



A roundish black spot on each side of the root of the caudal ; the 

 spinous dorsal colourless, transparent ; uniform olive (in spirits). 

 Head densely punctulated with brown. Only the hind margin of 

 the posterior prseopercular ridge is serrated. Dorsal fins nearly 

 equal in height. 



The height of the body is one-third of the total length (with- 

 out caudal), the length of the head two-fifths ; eye large, its dia- 

 meter being more than one-third of Ihe length of the head. Pala- 

 tine and vomerine teeth present. The upper jaw overlaps slightly 

 the lower ; maxillary extending backwards to below the posterior 

 third of the orbit. Operculum with an upper flexible point, and 

 with a lower stiff spine. The third dorsal spine is a Httle longer than 

 the second, one-half of the length of the head. Caudal fin shghtly 

 emarginate, with the angles rounded. 



Total length 26 lines. 



This species is so closely allied to A. inermis, from the Mediter- 



