Kumpay Black Goby

Stiphodon atropurpureus, also known as the Black Kumpay Goby, is a freshwater goby species in the Gobiidae family. Here are some important facts about this species:

 Size: This goby is small in size, typically growing up to a maximum length of 5-6 cm (2-2.4 inches).

 Coloration: The males have a distinctive black or dark purple color, especially during the breeding season. Females, on the other hand, tend to have more muted tones like brown or gray.

Body Shape: They have a streamlined and elongated body with a round head and slightly pointed snout. Their fins are relatively small but serve their purpose in fast-moving streams.