| Claroteidae (Claroteid catfishes), subfamily: Auchenoglanidinae |
| 4.4 cm SL (male/unsexed) |
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demersal; freshwater |
| Africa: north and east of the Sierra Leone river estuary, including Tai River and Kasewe Forest, in Sierra Leone (Ref. 57126, 94168). |
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Dorsal soft rays (total): 12-16; Anal spines: 0-0; Anal soft rays: 9-12; Vertebrae: 34-34. Diagnosis: Notoglanidium thomasi differs from all congeners in the large interorbital distance, 41.0-46.7% of head length vs. less than 37% in all other species (Ref. 94168). It differs from other species in the genus in having: a rather large eye diameter, 9.1-12.5% of head length vs. smaller in N. depierrei, N. maculatum and N. pallidum; a small combined premaxillary tooth plate width, 11.9-18.2% of head length vs. larger in N. akiri, N. boutchangai, N. macrostoma and N. pembetadi; and a relatively large number of soft dorsal-fin rays, 12-16 vs. less in N. akiri, N. boutchangai, N. depierrei and N. macrostoma (Ref. 94168).
Description: Body slender but not elongate, about 7-9 times as long as deep, predorsal body depth 16.1-19.2% of standard length, minimal caudal peduncle depth 10.7-13.1% of standard length; head not depressed, head depth 52.2-65.2% of head length (Ref. 57126, 94168). Occipital process scarcely developed and well separated from nuchal plates; humeral spine well visible (Ref. 57126). Eyes very small, round and in dorsal position (Ref. 57126). Branchiostegal membranes completely fused (Ref. 94168). Dorsal fin with short spine, 4.6-6.2% of head length; adipose fin low, 1.2-4.5% of standard length (Ref. 94168).
Colouration: In life, light brown with many round to irregular, large spots covering most of the head and body surface, leaving little space in between; spots are smaller ventrally and on the caudal fin; spots on pectoral, pelvic and anal fins very faint (Ref. 94168). |
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Vulnerable (VU); Date assessed: 14 January 2020 (B1ab(iii)) Ref. (130435)
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| harmless |
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Type locality of the syntypes of Notoglanidium thomasi: 'Victoria & Pujehun, Sierra Leone' (Ref. 1880). Known from Victoria near Freetown peninsula (Ref. 57126), Waanje River (Ref. 57126, 94168) and Kasewe forest (Ref. 57126), including Jong River (Ref. 57126, 94168) and Sewa River (Ref. 57126). Also Ref. 3236. Also Ref. 3236. |
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