A case of tetrophthalmia with unilateral synophthalmia in an unborn fetus of blue shark Prionace glauca (Carcharhiniformes, Carcharhinidae)

被引：2

作者：

Pasten-Marambio, Victor ^{[1
]}

Hevia-Hormazabal, Valentina ^{[1
]}

Acuna, Enzo ^{[1
,2
]}

Alonso Vega, J. M. ^{[1
]}

机构：

[1] Univ Catolica Norte, Fac Ciencias Mar, Dept Biol Marina, Casilla 117, Coquimbo, Chile

[2] Univ Catolica Norte, Dept Biol Marina, Millenium Nucleus Ecol & Sustainable Management O, Coquimbo, Chile

来源：

REVISTA DE BIOLOGIA MARINA Y OCEANOGRAFIA | 2018年 / 53卷

关键词：

Chondrichthyes; orbital malformations; conjoined twins; bycatch; embryogenesis; RECORD; FIELD;

D O I：

10.22370/rbmo.2018.53.0.1251

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

This study describes and classifies a case of multiple malformations in an unborn blue shark Prionace glauca fetus, which was extracted from a gravid female captured during a research campaign addressed to the biological study of sharks in northern and central Chile. The analyzed specimen shows tetrophthalmia with unilateral synophthalmia, anomaly characterized by the existence of 4 ocular globes, two of which are partially fused. In addition, the axial skeleton of the fetus shows thoracic lordosis and helical torsion in the abdominal-caudal portion. This is the first world report of tetrophthalmia with unilateral synophthalmia in chondrichthyans.

引用

页码：25 / 30

页数：6

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