Morphology Summary - Petrocephalus longicapitis
形態学データの Petrocephalus longicapitis
検索表
Abnormalities
主な参照 Kramer, B., R. Bills, P. Skelton and M. Wink, 2012
Appearance refers to
Bones in OsteoBase

性別の特性

専門の臓器
異なる出現
異なる色
意見

大人と子供の特性に関する記述

目立つ特徴
身体の側面  (shape guide) fusiform / normal
横断面
後頭部の側面
目の種類
目/鼻の種類
口の場所
Type of scales cycloid scales
診断

Diagnosis: Head length 25.8-29.6% of standard length; predorsal length 61.9-65.7% of standard length; preanal length 57.5-61.7% of standard length; depth of caudal peduncle 33.4-39.8% of its length; 12 scales around caudal peduncle; 37-39 scales in lateral line row (Ref. 91771).

Description: Body oval shape; head broadly rounded with a small ventrally positioned subterminal mouth, situated ventral to the eye; head and body dorsolaterally compressed (Ref. 91771). Dorsal fin origin situated about two-thirds of standard length from snout, obliquely orientated, anteriorly higher and posteriorly lower, distal margin crescentic with anterior two or three rays longer than posterior rays, and 21-25 rays (Ref. 91771). Anal fin longer than dorsal fin, opposite dorsal fin with slightly more anterior origin, obliquely orientated, anteriorly lower and posteriorly higher, anterior 10 or so rays longer than posterior ones, especially in males where they also disappearstronger, margin broadly rounded, rays posterior to first 10 with distal margin straight, 26-30 rays (Ref. 91771). Scales cycloid with reticulate striae, scales extending anteriorly to operculum and pelvic fins; 37-39 scales in lateral series; scales on caudal peduncle circumference, 12 (Ref. 91771). Caudal peduncle slender, subcylindrical entire length, 18-21.5% of standard length (Ref. 91771).

Colour: In life it is grey-silver, underside lighter, paired fins light and transparent (Ref. 91771). It is light brown coloured in preservation (Ref. 91771).

Ease of Identification

対称特性の Petrocephalus longicapitis

側線 中断された: No
側線ラインの長さ 37 - 39
Pored lateral line scales
Scales in lateral series
側線ラインより上の規模
側線ラインより下の規模
側線(尾鰭付近)周囲の規模 12 - 12
ひげ
鰓(サメ/エイのみ)
鰓篩
下部のヒレに
上部のヒレの上に
合計
脊つい
肛門前方の
合計

背面のヒレ

属性 no striking attributes
鰭の数 1
小離鰭の数 Dorsal   
Ventral  
脊椎の合計 0 - 0
全体の鰭 21 - 25
脂びれ absent

尾びれ  (shape guide)

属性

肛門のひれ

鰭の数 1
脊椎の合計 0 - 0
全体の鰭 26 - 30

対ひれ

胸の 属性  
脊椎     
鰭   
骨盤の 属性  
場所    
脊椎     
鰭   
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