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VOL. 94 



similar series each side of middorsal line anteriorly, with a few along 

 middorsal line, while in tlie new subspecies, maracaiboensis, the dorsal 

 surface has numerous small irregularly placed brown spots, and below 

 the series along the midsidcs is another series of small spots, lacking 

 in hanneaui. 



Named maracaiboensis after the drainage basin in which it was 

 collected. 



Table 11. — Fin-ray counts for various species of Pygidium 



Genus HOMODIAETUS Eigenmann and Ward 



Homodiaetus Eigenmann and Ward, in Eigenmann, McAtee, and Ward, Ann. 

 Carnegie Mus,, vol. 4, p. 117, 1907. (Type, Homodiaetus anisitsi Eigenmann 

 and Ward.) 



HOMODIAETUS HAEMOMYZON Myers 



Homodiaetus haemomyzon Myers, Stanford Ichth. Bull., vol. 2, No. 4, p. 98, 

 1942 (Rio Gudrico, at Calabozo and at El Sombrero; lagoon 10 km. south 

 of San Fernando de Apure, Venezuela). 



Genus STEGOPHILUS Reinhardt 



Stegophilus Reinhardt, Vid. Medd. Naturh. Foren. Kj0benhavn, 1858, p. 79, 

 pi. 2. (Type, Stegophilus insidiosus Reinhardt.) 



STEGOPHILUS SEPTENTRIONAUS Myers 



Stegophilus septentrionalis Myers, Bull. Mus. Comp. Zool., vol. 68, No. 3, p. 

 130, 1927 (Santa Barbara, Orinoco, Venezuela). 



Genus HAEMOMASTER Myers 



Haemomaster Myers, Bull. Mus. Comp. Zool., vol. 68, No. 3, p. 131, 1927. (Type, 

 Haemomaster venezuelae Myers.) 



HAEMOMASTER VENEZUELAE Myers 



Haemomaster venezuelae Myers, Bull. Mus. Comp. Zool., vol. 68, No. 3, p. 131, 

 1927 (Santa Barbara, Orinoco; Playa Tama-Tama, Bifurcation, Orinoco, 

 Venezuela). 



Genus ACANTHOPOMA Liitken 



Acanthopoma LDtken, Vid. Medd. Naturh. Foren. Kj0benhavn, 1891, p. 53, fig. 

 (Type, Acanthopoma annecteris Liitken.) 



