Main Ref. | Springer, V.G. and A.E. Spreitzer, 1978 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | |
Different appearance | |
Different colors | |
Remarks |
Striking features | |
Body shape lateral | |
Cross section | |
Dorsal head profile | |
Type of eyes | |
Type of mouth/snout | |
Position of mouth | |
Type of scales | |
Diagnosis |
Dorsal-fin spines 12-14, usually 13; segmented dorsal-fin rays 16-18; total dorsal-fin elements 29-31; anal-fin spines 2, segmented anal-fin rays 20; segmented caudal-fin rays 13 (9 branched, once); pectoral-fin rays 13-15 (14, rarely 13 or 15); total premaxillary teeth 34-37; total dentary incisoriform teeth 26-29; minute posterior canine usually present on each dentary; upper jaw teeth immovable or nearly so; continuous tubular portion of lateral line short, followed by several unconnected, bipored tubes, posteriormost tube lying below vertical from base of 7th-12th dorsal-fin spine; median supratemporal commissural pores 3; fleshy median crest on top of head absent; 1 (rarely 2) simple supraorbital cirri; on posterior nostril, cirri on anterior rim absent to multifid and absent on posterior rim; on anterior nostril, cirri on posterior rim 1-3 and 0-3 (usually 1) on anterior rim; nuchal cirri present; nape cirrus a simple flap; dark spot between first two dorsal-fin spines absent; eye diameter <30 mm SL; max. size 3.24 cm SL (Ref. 69212). |
Ease of Identification |
Lateral Lines | Interrupted: No |
Scales on lateral line | |
Pored lateral line scales | |
Scales in lateral series | |
Scale rows above lateral line | |
Scale rows below lateral line | |
Scales around caudal peduncle | |
Barbels | |
Gill clefts (sharks/rays only) | |
Gill rakers | |
on lower limb | |
on upper limb | |
total | |
Vertebrae | |
preanal | |
total |
Attributes | |
Fins number | 1notched No |
Finlets No. | Dorsal |
Ventral | |
Spines total | 12 - 14 |
Soft-rays total | 16 - 18 |
Adipose fin | absent |
Attributes | more or less truncate; more or less normal |
Fins number | 1 |
Spines total | 2 |
Soft-rays total | 19 - 21 |
Pectoral | Attributes more or less normal |
Spines | |
Soft-rays 13 - 15 | |
Pelvics | Attributes more or less normal |
Position jugular | |
Spines 1 | |
Soft-rays 3 |