形態學資料 Brockius albigenys
檢索表
Abnormalities
主要參考文獻 Williams, J.T., 2003
形態描述的性別
Bones in OsteoBase

性別內容

特殊器官
不同的外表
不同的顏色
附註

稚魚與成魚的特徵描述

顯著的特徵
側面體型 elongated
橫切面
頭部背面描繪
眼的類型
口/吻尖的類型
口的位置
Type of scales
鑑別

Common amongst Labrisomids: small, often elongate fishes; largest species about 20 cm standard length, most under 10 cm standard length. Head usually with cirri or fleshy flaps on anterior nostrils, eyes, and laterally on nape; gill membranes continuous with each other across posteroventral surface of head. Each jaw with an outer row of relatively large, canine-like or incisor-like teeth, often with patches of smaller teeth behind; teeth usually also present on vomer and often on palatines (roof of mouth). Dorsal and anal fins long, frequently highest anteriorly; dorsal-fin spines often flexible, outnumbering segmented dorsal-fin soft rays; 2 usually flexible spines in anal fin; pelvic fins inserted anterior to pectoral-fin bases, with 1 spine not visible externally and only 2 or 3 segmented rays; all fin rays, including those of caudal, unbranched (simple). Lateral-line tubes or canals varying from complete (extending entire length of body) to present only on anterior portion of body. Cycloid (smooth to touch) scales present at least posteriorly on body. Body coloration: varying from drab to brilliant hues; usually with irregular vertical bands, spots, or marbled pattern. Species distinguished by: dorsal fin consisting of spines and 7 to 37 segmented rays; lateral-line tubes or canals present at least anteriorly on body; two or more cirri on each side of nape just anterior to dorsal-fin origin; pelvic-fin soft rays 3 (innermost ray may be reduced in length and folded over middle ray); scales in lateral-line series 40 to 69 (some scales in posterior portion of lateral line may lack sensory tubes, but are included in count); maxillary bone exposed posteriorly; patches of small teeth behind outer row of large teeth in at least upper jaw; teeth present or absent on palatines (palatine teeth, when present, same size as or smaller than those on vomer); opercular ocellus absent (Ref.52855).

鑑定難易度

分節特性 Brockius albigenys

側線 打斷: No
側線上的鱗片 40 - 69
側線上鱗片數
側生系列的鱗片
側線上的鱗片列
側線下的鱗片列
尾梗周圍的鱗片
觸鬚
鰓裂 (僅限於鯊魚/ 魟魚)
鰓耙
在下肢上
上枝鰓耙
總數
脊椎骨
肛門前
總數

背鰭 (s)

屬性 extending over most of the back length
鰭數 1
離鰭號碼 Dorsal   
Ventral  
棘總數
軟條總數 7 - 37
脂鰭

尾鰭

屬性 more or less truncate; more or less normal

臀鰭 (s)

鰭數 1
棘總數 2 - 2
軟條總數

偶鰭

胸鰭 屬性  more or less normal
脊椎     
軟條   
骨盤的 屬性  more or less normal
位置    jugular
脊椎     1
軟條   3 - 3
回搜尋頁
意見 & 訂正
cfm script by eagbayani, 17.10.00, php script by rolavides, 13/03/08 ,  最後修訂者: sortiz, 06.27.17