Bonilla Lizarazo Rocío Johanna, Quintero Virguez Marllury, Ramírez Edwin Gómez, Rodríguez Caicedo Daniel, Hurtado Giraldo Hermán
Laboratorio de Histoembriología, Grupo de Ictiología, Programa de Biologia Aplicada, Facultad de Ciencias, Universidad Militar Nueva Granada, Cra 11 101-80 Bogotá, Colombia.
Rev Biol Trop. 2008 Jun;56(2):885-93.
The tropical freshwater fish Eremophylus mutisii is endemic to the Cundinamarca highland in Colombia. Skin samples (0.5x0.5 cm2) were taken from 11 specimens at six body parts (mandible, dorsal head, dorsal trunk, caudal trunk, medial trunk and abdominal area), fixed in 4% formaldehyde, dehydrated in 95% ethanol and 99% isopropanol, embedded in paraffin and sectioned at 5 sm. The skin is made of two mayor cutaneous layers (epidermis and dermis) and a subcutaneous layer (hypodermis). The epidermis presents three layers with secretory cells, epithelial cells and a few taste buds; the dermis is separated from the epidermis by a basal membrane. We observed fibroblasts, two layers of melanophors and some blood vessels; the hypodermis has vascularized adipose tissue. Skin thickness changes with body area; the dermis is thicker than the epidermis; skin has more club cells than mucous cells. The medial trunk area has the largest number of club and mucous cells. The skin of E. mutissi seems to mainly have a protective function.
热带淡水鱼穆氏异纹脂鲤是哥伦比亚昆迪纳马卡高地的特有物种。从11个标本的六个身体部位（下颌、头部背面、躯干背面、尾干、躯干中部和腹部区域）采集皮肤样本（0.5×0.5平方厘米），用4%甲醛固定，在95%乙醇和99%异丙醇中脱水，石蜡包埋，切成5微米厚的切片。皮肤由两个主要的皮肤层（表皮和真皮）和一个皮下层（皮下组织）组成。表皮有三层，包含分泌细胞、上皮细胞和一些味蕾；真皮通过基膜与表皮分离。我们观察到了成纤维细胞、两层黑素细胞和一些血管；皮下组织有血管化的脂肪组织。皮肤厚度随身体部位而变化；真皮比表皮厚；皮肤中的棒状细胞比黏液细胞多。躯干中部区域的棒状细胞和黏液细胞数量最多。穆氏异纹脂鲤的皮肤似乎主要具有保护功能。
