ORDER PERCIFORMES
Sabdrder Percaidei
Key to Families
1a. A single nostril on each side of head.............................2
1b. Two nostrils on each side of head........................................3
2a. Anal fin with 2 spines.....................................POMACENTRIDAE
2b.Anal fin with 3 or more spines.........................CICHLIDAE
3a. Gills3.5 with slit behind last, small or wanting; lower normally bears teeth..........................................4
3b.Gills 4 ,with a long slit behind last; lower pharyngals not united and not bearing molar teeth....................5
4a. Teeth in jaws quite separate and normal...............................LABRTDAE
4b. Teeth in Jaws partly or wholly coalesced...........................SCARIDAE
5a. Not more than one weak spine..........................................................................6
5b. Always 2 or 3 strong anal spine .........................................................................9
6a. Body moderate in length; robust, with heavy bony head, eyes entirely dorsal, and mouth dertical......URANOSCOPIDAE
6b. Body slender,eyes lateral, and mouth horizontal or nearly so...........................................................7
7a.First dorsal fin with 10-12 spines.....................OPISTHOGHATHIDAE
7b.First dorsal fin with 5 spines......................................................................8
8a. One lateral line....................................................MUGILOIDIDAE
8b. Two lateral lines...................................................CHAMPSODONTIDAE
9a. Lower pecteral rays simple and thickened..................CHRRHITIDAE
9b. Lower pecteral rays branched, not specially thickened.............................................10
10a. Body orbicular of deeper than long.............................................11
10b. Body oval or elongate or oblong,always longer than deeper..............................................14
ORDER PERCIFORMESSabdrder PercaideiKey to Families1a. A single nostril on each side of head.............................21b. Two nostrils on each side of head........................................32a. Anal fin with 2 spines.....................................POMACENTRIDAE2b.Anal fin with 3 or more spines.........................CICHLIDAE3a. Gills3.5 with slit behind last, small or wanting; lower normally bears teeth..........................................43b.Gills 4 ,with a long slit behind last; lower pharyngals not united and not bearing molar teeth....................54a. Teeth in jaws quite separate and normal...............................LABRTDAE4b. Teeth in Jaws partly or wholly coalesced...........................SCARIDAE5a. Not more than one weak spine..........................................................................65b. Always 2 or 3 strong anal spine .........................................................................96a. Body moderate in length; robust, with heavy bony head, eyes entirely dorsal, and mouth dertical......URANOSCOPIDAE6b. Body slender,eyes lateral, and mouth horizontal or nearly so...........................................................77a.First dorsal fin with 10-12 spines.....................OPISTHOGHATHIDAE7b.First dorsal fin with 5 spines......................................................................88a. One lateral line....................................................MUGILOIDIDAE8b. Two lateral lines...................................................CHAMPSODONTIDAE
9a. Lower pecteral rays simple and thickened..................CHRRHITIDAE
9b. Lower pecteral rays branched, not specially thickened.............................................10
10a. Body orbicular of deeper than long.............................................11
10b. Body oval or elongate or oblong,always longer than deeper..............................................14
การแปล กรุณารอสักครู่..
