OCR Text |
Show 1885.] TROCHILIDA, CAPRIMULGIDA, AND CYPSELIDA. 915 EXPLANATION OF THE PLATES. [All the figures in the Plates were drawn by the author from the specimens.] PLATE LVIII. Fig. 1. Skull of Trochilus alexandri, superior aspect, with mandible removed, X 4. Pmx, premaxillary ; a, an ossification from the same; mxp, maxillo-palatine ; Na, nasal; I, lacrymal. 2. Eight lateral view of Trochilus alexandri, X 4, same specimen; q, quadrate; Vo, vomer ; pp, pars plana; and other letters as in fig. 1. 3. Under view of the skull of Trochilus alexandri, X 4, same specimen, mandible removed. Pt, pterygoid ; PI, palatine ; and other letters as before. PLATE LIX. Fig. 1. Right lateral view of the skull of Chordediles acutipennis texensis, letters as in Plate LVIII. 2. Inferior view of mandible of the same specimen as in fig. 1. Life-size. 3. Superior aspect of tbe skull of Chordediles acutipennis texensis, X same specimen as before; mandible removed. Letters have tbe same meaning. 4. Inferior view of the skull of Chordediles acutipennis texensis, X same specimen as in fig. 1 ; mandible removed ; b.pt, basisphenoid. Other letters as before. PLATE LX. Fig. 1. Pectoral aspect of sternum of Panyptila saxatilis, X 2. 2. Shoulder-girdle of Panyptila saxatilis, same specimen, X 2; cl, clavicle ; z, the ledge it develops on the outer side of its head for the coracoid; c, coracoid; s, scapula; z' and cl', same as z and cl, but the bone they refer to is a front view of the furcula, shown in side view at cl. 3. Pectoral aspect of sternum of Trochilus alexandri, X 4. 4. Eight lateral view of the sternum of Panyptila saxatilis, x 2, same specimen as shown in fig. 1. 5. Anterior aspect of right coracoid of Trochilus alexandri, X 4; same specimen as in Plate I. Compare this bone with the Swift's coracoid shown in fig. 2. 6. Eight lateral view of sternum of Trochilus alexandri, X 4; same specimen as in Plate I. Compare this sternum with the very differently formed one from a Swift in fig. 4. PLATE LXI. Fig. 1. Left pectoral limb of Chordediles acutipennis texensis, life size, palmar aspect; same specimen as shown in Plate II. h, humerus ; u, ulna ; r, radius ; re, radiale ; ue, ulnare ; p, pollex ; i', index metacarpal; i" and i'", its phalanges; m', middle metacarpal; m", its digital joint. 2. Shoulder-girdle and sternum, from the same specimen as in fig. 1, left three-quartering view ; life-size. The several bones in situ. 3. Left pectoral limb of Trochilus alexandri, X 4 ; from the same specimen as in Plate LVIII. Letters have the same significance as those in fig. 1, with s, s', s", and s'", sesamoids; /, process of index phalanx. 4. Left pectoral limb of Panyptila saxatilis, X 2 ; from the same specimen used in former figures ; both these limbs are, with the exception of radius and ulna, seen upon anconal aspect, the excepted bones being rotated nearly to the radial view. Letters have the same significance as those in figs. 1 & 3. |