FIGURE 4 in The Microsynodontis (Teleostei: Siluriformes: Mochokidae) of the lower Guinea region, west central Africa, with the description of eight new species

FIGURE 4. Dorsal view of pectoral spines of: a. M. armatus, holotype, CU 89392, 27.4 mm SL; b. M. christyi, MRAC 61801, 37.5 mm SL; c. M. emarginatus, paratype, CU 80567, 32.0 mm SL; d. M. laevigatus, paratype, CU 88265, 28.1 mm SL; e. M. notatus, holotype, MRAC 80­51­P­839, 41.0 mm SL; f. all other Microsynodontis (represented by M. batesii, MRAC 93­085­P­0280, 42.6 mm SL). Scale bar represents 1 mm.Published as part of Ng, Heok Hee, 2004, The Microsynodontis (Teleostei: Siluriformes: Mochokidae) of the lower Guinea region, west central Africa, with the description of eight new species, pp. 1-52 in Zootaxa 531 on page 8, DOI: 10.5281/zenodo.15792