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Show 1867-] MR. O. SALVIN ON THE BIRDS OF VERAGUA. 145 93. MYRMOTHERULA, sp.? Santa Fe. Arce has sent a single specimen of a female of a species of Myrmotherula, which I have never been able satisfactorily to determine. It agrees with specimens I obtained in Vera Paz. 94. RAMPHOCCENUS RUFIVENTRIS, Bp. Santa Fe. 95. RAMPHOCENUS SEMITORQUATUS, Lawr. Santiago de Veragua. This species is very closely allied to R. einereiventris, Sclater, if really distinct. The most obvious and, indeed, the only point of difference seems to consist in the much less extent of the postocular spot. 96. MYRMECIZA L^MOSTICTA, Salvin, P. Z. S. 1864, p. 582. Santa Fe. A single specimen from this locality agrees accurately with our type from Tucurriqui, Costa Rica. 97. CERCOMACRA TYRANNINA, Scl. Santa Fe. 98. PITHYS BICOLOR, Lawr. Santa Fe'. 99. PHLOGOPSIS MACLEANNANI, Lawr.; Scl. &Salv.Ex.Orn.t.9. Santiago de Veragua. 100. FORMICARIUS RUFIPECTUS, Salvin, P. Z. S. 1866, p. 73, pl. VIII. Santiago de Veragua. In the plate above referred to, the artist has represented this bird on a stone surrounded with water. This is manifestly erroneous, as all members of this genus, and, indeed, of the whole family, frequent the thin undergrowth of the virgin forest. Formicarius flies little, but follows the ant-paths, walking and running on the ground amongst the decayed leaves, occasionally mounting a prostrate tree. F. moniliger, Scl., has a sharp clear cry. 101. FORMICARIUS ANALIS, D'Orb. & Lafr.; Salv. P. Z. S. 1866, p. 74. Santiago de Veragua. A single immature bird from this locality would, no doubt, hi the adult state agree with our Costa Rica specimen mentioned in the above reference. This, as I there observed, differs somewhat from southern specimens; but m y materials are still insufficient to determine whether the differences are constant or not. F. hoffmanni, Cab., doubtless also occurs in this portion of Veragua, as it is found both at Panama and in Costa Rica. W e thus have three very distinct PROC. ZOOL. Soc.-1807, No. X. |