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342 MR. V. L. SCLATER ON CYANOMYIAS CCELESTIS. [Apr. 4, terminal postabdominal segment is shorter than in C. subterranea, not as long as its greatest width. Length about 3 inches 10 lines (98 mm.) ; of the larger chelipede, from the base of the merus joint to end of the dactylus, about 2 inches 10 lines (72 mm.). From the American C. californiensis and C. uncinata, this species is distinguished by the much longer palm of the larger chelipede, and the much broader, less prominent, denticulated basal lobe of the arm or merus. EXPLANATION OF PLATE XX. Fig. 1. Naxia (Naxioides) robillardi (p. 339), adult male, reduced to about half natural size. la. Lateral view of the carapace of the same in outline, showing the elevation of the dorsal spines, reduced about half natural size. lb. Antennal, orbital, and buccal regions of the same, viewed from below, natural size. lc. Postabdonien of the same, natural size. April 4, 1882. Professor Flower, LL.D., F.R.S., President, in the Chair. Mr. Sclater exhibited what appeared to be an adult male example of Cyanomyias ccelestis (Sharpe, Cat. Birds, iv. p. 278), which belonged to the Museum of Zurich, and had been sent to him for determination by Dr. Moesch, of that city. Mr. Sclater remarked on the more brilliant colours and finely developed crest of tbe male of this species, which rendered it readily distinguishable from the female example (figured by Lord Tweeddale, P.Z.S. 1878, pl. vii. Head of Cyanomyias coelestis <$ • fig. 1), the only specimen hitherto known of this superb Flycatcher. The present example was received from Manilla, but was probably originally from Dinagat, as the type specimen, now in the collection of Mr. Wardlaw Ramsay, had been procured in that island. Besides the highly developed crest and more brilliant |
