PISCES. 155 



extending as far as the apex of tail. Caudal fin very narrow, with 

 middle rays longer. Ventral fins moderate, approximate. 



Sp. Cepola ruhescens Jj., Bloch Ichth. Tab. 170 (named Cepolce tcenicel,., a 

 species to be suppressed), Yareell Brit. Fish. i. p. 195, Diet. univ. 

 d'Hist. nat., Polss. PI. 10, fig. 2 ; in the Medit. Sea; — Cepola Krusensterni 

 ScHL., {Cepola Umhata and Cepola marginata Val. ?) Faun. Jap. Pise. 

 Tab. 71, fig. I: from Japan; in this species the scales are more conspicu- 

 ous, the head also under the eyes and the gill-covers are covered with 

 scales. In this genus a large swimming bladder is present, and some 

 moderately large appendages (in Cepola rubescens eight) surround the 

 pylorus. 



Family XXXVIII. Scomheroidei. Body smooth, covered 

 with very small scales, mostly compressed. Lateral line in the 

 last part often marked with larger carinate scales, or with a mem- 

 branous crest. Tail and mostly caudal fin signally developed. 

 Eyes large. Scales sometimes at the base of dorsal and anal fins ; 

 the remaining part of the membrane connecting the rays feeble, 

 soft, in some entirely absent, the fins being resolved posteriorly into 

 spurious finlets. Ventral fins thoracic or none. Opercular bones 

 with margin smooth. (Pyloric appendages numerous. Swimming- 

 bladder present in some, in others wanting.) 



I . Mouth not protractile into a tube. 

 A. Lateral line not carinate. 



Lepidopus GouAN. Body compressed, elongate, scaleless. Gape 

 of mouth ample, w^ith lower jaw prominent. Maxillary teeth acute, 

 compressed, disposed in a single row, a few larger in the middle 

 on each side behind the continuous set. Branchiostegous membrane 

 with eight rays. Two rigid scales in place of ventral fins. Dorsal 

 fin continuous, very long. Anal fin small. Caudal fin distinct. 



Sp. Lepidopus argyreus Gov., Cuv. et Val. Poiss. viii. PI. 223, R. Ani., 6d. 

 ill., Poiss. PI. 671, Trichiurus gladius Holten, Skrivter af naturh. Sels- 

 kabet, v. 2, 1802, pp. 19—28, Tab. 2, fig. i ; in the Med. Sea and the 

 Atl. Ocean. Is the Lepidopus Gouani Bl., Schn., Gouan Hist. Pise. Tab. 

 I. fig. 4, Bl. Ichth. Tab. 53, fig. 2, the same species with the caudal fin 

 mutilated ? 



Trichiurus L. Branchiostegous membrane with seven rays. 

 Ventral fins none. Numerous short spines in place of anal fin. 

 Tail subulate, finless. (Kemaining characters almost those of the 

 preceding genus.) 



