| SOURCE FOR OCCURRENCE IN ECUADOR: Eigenmann et al. (1914), Eigenmann (1922), Roberts (1974). |
| ORIGINAL DESCRIPTION: Eigenmann, C.H. , A.W. Henn and C. Wilson. 1914. New fishes from western Colombia, Ecuador, and Peru. (Contrib. Zool. Lab. Ind. Univ. No. 133.). Indiana University Studies No. 19: 1-15. |
| TYPE SPECIMENS: Holotype: FMNH-56599, paratypes: CAS-6764, CAS-6766, CAS-16017, CAS-16018, FMNH-56600, USNM-76975. |
| TAXONOMIC STATUS: Valid (Eschmeyer and Fricke, 2014). Although this species is very similar to Saccodon wagneri and its validity has been questioned (Roberts, 1974), Pavanelli and Starnes (2015) considered it valid in a recent review of the genus based on museum samples. Confirmed collections in Ecuador are lacking in recent years given that juvenile S. wagneri are easily confused with this species. Directed studies that include genetic data are needed to confirm its present status. |
| RANGE ECUADOR: Known only from the type locality close to Vinces in the Guayas River drainage (Roberts, 1974). |
| RANGE OUTSIDE OF ECUADOR: None (Roberts, 1974). |
| COLLECTIONS IN ECUADOR: See type specimens above and CAS-6764, CAS-6766, and USNM-76975. |
| MAXIMUM SIZE: 50 mm (Eigenmann et al., 1914). |
| DISTINGUISHING FEATURES: This species is very similar to its congener Saccodon wagneri. The two differ primarily by the position of the mouth. The mouth is inferior in the widespread and relatively common S. wagneri, while it is terminal or slightly subterminal in S. terminalis (Roberts, 1974). Roberts (1974) noted that S. wagneri exhibits substantial variation in dentition and coloration and indicated that it is possible that the difference in the position of the mouth of these species may also be a polymorphism within S. wagneri, in which case S. terminalis would be an ecomorph of S. wagneri and not a valid species. More work is needed to verify the validity of this species. |
| ECOLOGY: Parodontids in general are associated with fast running streams close to mountains in which the bottom is composed of boulders and rocks (Roberts 1974). This species may occur in slower waters than other parodontids given the locality of collection (Vinces). |
| ECONOMIC IMPORTANCE: This species is not important economically due to its small size and apparent rarity. |
| CONSERVATION STATUS: Unknown, although if this is a valid species it may have a relatively restricted distribution which would make it vulnerable. |
| LINK TO FISHBASE PAGE: Click here for link |
| SPECIES PROFILE CREATED BY: Windsor Aguirre. |
| SPECIES PROFILE CONTRIBUTORS: NA. |
