Colomesus tocantinensis
概要
| 字段 | 值 |
|---|---|
| 类别 | 鱼 |
| 学名 | Colomesus tocantinensis |
| 分类 | 鲀形目 Tetraodontiformes › 四齿鲀科 Tetraodontidae › Colomesus |
| 水体 | 淡水 |
| 原产地 | 巴西托坎廷斯州国民港附近的托坎廷斯河 |
| 成体体长 | 3.5 cm |
| 饲养难度 | 中等 |
| 群居方式 | 群游 |
| 外部数据 | seriouslyfish colomesus-tocantinensis;fishbase 69136 |
概述
Colomesus tocantinensis 是巴西的小型淡水河鲀,可能尚未进入观赏鱼贸易。背部浅黄、具五道暗横带,下颌没有横向皮瓣,是辨识时可留意的特征。
分布与栖息地
目前仅知模式产地,即巴西托坎廷斯州国民港附近的托坎廷斯河。
繁殖
本种繁殖方式尚未明确,不能直接套用近缘鱼漂流幼体进入泛滥区的繁殖策略。
补充说明
鳃盖下缘有缺刻,外形近倒 V 字,背鳍和臀鳍鳍条数也较少,可与近似种区分。已知标本尺寸不代表可靠的成体上限,它可能继续长大。
图片
图片来自 SeriouslyFish,版权归各摄影者所有。
English
Overview
A small Brazilian freshwater puffer, Colomesus tocantinensis may not yet have entered aquarium trade. A pale yellow back with five dark crossbands and the absence of chin flaps are useful identifying features.
Distribution & habitat
The only known locality is the type site in the Tocantins River near Porto Nacional, Tocantins State, Brazil.
Breeding
Reproduction is unknown. A relative’s strategy of drifting larvae entering floodplain nurseries should not be assumed to apply here.
Notes
A notch along the lower opercular edge creates an inverted-V outline, and relatively low dorsal and anal ray counts help separate it from similar species. Available specimen sizes do not establish a dependable adult maximum; larger growth is expected.
来源
- https://www.seriouslyfish.com/species/colomesus-tocantinensis(抓取于 2026-10-10)
colomesus-tocantinensis · 文件: data/species/colomesus-tocantinensis.md · 状态: 草稿
