ACANTHOPTERYGII. 181 



dorsal and the post-anal appendage, but whose ventrals are entirely 

 distinct, the head obtuse and slightly depressed, the eyes at a dis- 

 tance from each other, and which have six rays in the branchial 

 membrane. Their lateral line is but slightly marked, and their vis- 

 cera are similar to those of the Gobies. Most of them inhabit fresh 

 water, and frequently live in the mud. 



E. dormitatrix, Cuv.; Platycephalus dormitator, Bl., Schn. 

 (The Sleeper.) Tolerably large, with a depressed head, inflated 

 cheeks, and fins spotted with black. From the marshes of the 

 Antilles.(l) 



They are also found in Senegal, (2) and in India.(3) 

 A small species is taken on the coast of the Mediterranean, 

 Gobiiis auratus^ Riss., of a golden colour, Avith a black spot on 

 the base of the pectoral, (4) 



Callionymus, Lin. (5) 



Fishes of this genus have two strongly marked characters, one in 

 their branchize, which have but a single aperture, consisting of a 

 hole on each side of the nape, and another in their ventrals, which 

 are placed under the throat, are separate, and larger than the pec- 

 torals. Their head is oblong and depressed, their eyes approxi- 

 mated and directed upwards, their intermaxillaries very protractile, 

 and their preopercula elongated behind and terminating in some 

 spines. Their teeth are small and crowded, but there are none in 

 the palate. They are pretty fishes with a smooth skin, whose ante- 

 rior dorsal, supported by a few setaceous rays, is sometimes very 

 elevated. The second dorsal is elongated as well as the anal. They 

 have the same post-anal appendage as the preceding ones. There 

 is no cul-de-sac to their stomach, and the natatory bladder and caeca 

 are wanting. One of them is common in the British Channel, the 

 Call, lyra, L.j Bl. 161 j Lacep. II, x, 1. The first dorsal ele- 

 vated, and the second ray extended into a long filament^ orange 



(1) It is the Gobiomore dormeur, Lacep. Add the Guaviiia, Parr., pi. xxxix, f. 1; 

 the Amove guagu, Marcgr. 66; the JLmore pixuma. Id. lb., or Gob. pisonts, Gm. 



(2) I infer this from a note attached to a dried skin presented to the Museum by 

 Adanson, and which is specifically different from the preceding ones. 



(3) The Gob. sirigatus, Brouss. Dec, pi. 1, or Gobiomore taiboa, Lacep. cop. 

 Ency. Method., f. 138; the Eleotris noir, Quoy and G. , op. cit. pi. Ix, f. 2, and the 

 Scixna macrolepidota, Bl. 298, and maculata, Id. 299, 2, which constituted my 

 former genus Frochilus, which must be suppressed. 



(4) It is an Eleotris and not a Goby. 



(5) Callionymus (beautiful name), one of the names of the Uranoscopus among 

 the Greeks. Linnaeus applied it to the present genus. 



