بينات المظهر الخارجي للـ Neolebias trewavasae
مفاتيح التعريف
Abnormalities
المرجع الرئيسي Vari, R.P., 2007
المظهر يشير الى
Bones in OsteoBase

Sex attributes

أعضاء متخصصه no special organs
مظاهر مختلقة
الوان مختلفة
ملاحظات

الخصائص الوصفية للصغار والبالغين

ملامح مذهلة none
شكل الجسم الجانبي fusiform / normal
المقطع العرضي
شكل ظهر الراس more or less straight
نوع العيون more or less normal
نوع الفم/ الخطم more or less normal
موقع الفم terminal
Type of scales
التشخيص

Diagnosis: laterosensory canal on lateral surface of head limited to arch of pores around ventral and posterior margins of orbit and associated with preopercle; 6th infraorbital (dermosphenotic) present, with laterosensory canal segment; infraorbital present at posterior margin of orbit; maxilla with 4 or fewer teeth, reaching past vertical through anterior margin of orbit; scaly process present at base of pelvic fin; dark pigmentation along lateral surface of body two scales wide or less; dark band on lateral surface of body passing through lower portion of caudal peduncle; base of caudal fin unpigmented or with rounded spot that falls distinctly short of dorsal and ventral margins of caudal peduncle (Ref. 81638).

Description: body moderately robust, more so anteriorly, depth 0.30-0.40x SL; head profile moderately acute anteriorly; premaxilla and dentary with 2 rows of teeth; teeth of outer row bicuspid, teeth of inner row conical; premaxilla with 10 teeth in outer row, maxilla with 2 teeth on anterodorsal margin, dentary with 15-16 teeth in outer row; laterosensory canal system of head not elaborated; body scales ctenoid and of moderate size; lateral line incomplete with pores on anterior 3-8 scales; 12 scales between dorsal fin origin and mid-ventral line (excluding median scales); D: II-IV,8-10; A: II-III,10-12 (Ref. 81638).

Coloration: preserved specimens dark tan; dorsal portion of head darker, with scattered dark pigmentation on lateral surface; post-orbital region with variably developed dark pigmentation sometimes in form of horizontal band continuous posteriorly with band on body; scales of dorsal and dorsolateral surfaces of body margined by dark pigmentation that forms reticulate pattern; pattern less obvious in specimens with darker overall pigmentation; distinct dark, slightly ventrally decurved band extends from immediately behind margin of opercle to base of lower portion of lower lobe of caudal fin; region of body dorsal of short lateral line scale series dusky, with darker area extending posteriorly as irregular dark band of variable length; region dorsal to band relatively do distinctly dark; caudal fin with basal portion of central rays of lower lobe with dark spot contiguous posteriorly with body stripe; remainder of caudal fin and all other fins variably dusky, typically more so in larger specimens (Ref. 81638).

سهل التعريف

Meristic characteristics of Neolebias trewavasae

الخطوط الجانبية 1 متقطع: No
Scales on lateral line 33 - 37
Pored lateral line scales 3 - 8
Scales in lateral series
Scale rows above lateral line 12 - 12
Scale rows below lateral line
Scales around caudal peduncle
Barbels 0
الشقوق الخيشومية ( القروش/ اسماك الري)
Gill rakers
على الطرف السفلي
على الطرف العلوي
المجموع
فقرات
قبل الشرج
المجموع

زعانف

الزعنفة الظهرية

السمات no striking attributes
عدد الزعانف 1
Finlets No. Dorsal   
Ventral  
ادوات اللأشواك 0 - 0
مجموع الأشعة اللينة 10 - 14
Adipose fin present

الزعنفة الذيلية

السمات forked; more or less normal

الزعنفة الشرجية

عدد الزعانف 1
ادوات اللأشواك 0 - 0
مجموع الأشعة اللينة 12 - 15

Paired fins

Pectoral السمات  more or less normal
اشواك     
اشعة لينة   
Pelvics السمات  more or less normal
الموقع    abdominal  behind origin of D1
اشواك     
اشعة لينة   
المرجع الرئيسي (على سبيل المثال 9948)
المصطلحات ( على سبيل المثال cephalopods )
Comments & Corrections
العودة الي البحث
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