rivulus

A noun referring to a genus of small fish found in tropical American streams, often kept in aquariums and known for usually being hermaphroditic.

• 🇨🇳指一种小型鱼类（溪鳉属 Rivulus），生活在美洲热带溪流中，常被饲养于水族箱，且以多为雌雄同体而闻名。

1. Small tropical fish C2 formal scientific

   A small fish from the genus Rivulus, found in small streams of tropical America, often kept in aquariums, and usually hermaphroditic.

   • The rivulus is a popular choice for tropical aquarium enthusiasts.
   • In its natural habitat, the rivulus thrives in small, slow-moving streams.
   • Researchers study the rivulus for its unique hermaphroditic reproductive system.

   🇨🇳小型热带鱼

• rivuli plural form
• rivuluses plural form
• rivuli's possessive plural form
• rivuluses' possessive plural form
• rivulus's possessive singular form