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Show 490 DR. SHUFELDT ON GEOCOCCYX CALIFORNIANUS. [NOV. 16, Subfamily CENTROPODIN;E. (Ground-Cuckoos.) Genus GEOCOCCYX. Species : G. calif or nianus. Subfamily CUCULIN^E. (True Cuckoos.) Genus COCCYZUS. Species: C. minor. C. americanus. C. erythrophthalmus. It is hardly necessary to add, from what we know of the osteology of these subfamilies, that this classification will be strongly supported by a comparison of that part of the anatomy of the several forms. EXPLANATION OF THE PLATES. PLATE XLII. Fig. 1. Pterylosis of Geococcyx ccdifornianus, ventral aspect. 2. „ ,, ,, dorsal aspect. PLATE XLIII. Fig. 1. Tongue, upper larynx, and entrance to oesophagus of Geococcyx californianus, seen from above. (Life-size, and drawn by the author from the specimen.) 2. Mode of insertion of patagial muscles. 3. Lower larynx, dorsal aspect. 4. Lower larynx, ventral aspect. PLATE XLIV. Lettering of this and following Plate. gl.pr, gluteus primus; gl.m, gluteus medius; gl.min, gluteus minimus; St, semitendinosus; a.s.t, accessory semitendinosus; Cr, mirasus; V.E, vastus externus; v.i, vastus internus; Bi, biceps flexor cruris; I, tendinous loop of biceps; amb, ambiens; Sm, semimembranosus; S, sartorius ; a.l, adductor longus; a.m, adductor magnus; f.c, femoro-caudal ; a.f.c, accessory femoro-caudal; o.c, obturator externus; o.i, obturator internus ; ge, gemellus; p.l, peroneus longus ; tib.ant, tibialis anticus; tib.post, tibialis posticus; ^gastrocnemius; so, soleus; popl, popliteus ; e.l.d, extensor longus digitorum; f.px, flexor perforatus indicis secundus pedis; fp2, flexor perforatus medius secundus pedis; flt flexor perforatus indicis primus pedis; f2, flexor perforatus medius primus pedis ; f.l.h, flexor longus ballucis ; f.b.h, flexor brevis hallucis; f.p.a, flexor perforatus annularis primus pedis ; f.p.p, flexor perforans digitorum profundus; E.b, extensor brevis annularis; e.b.d, extensor brevis digitorum. Fig. 1. The outer aspect of the right pelvic limb of Geococcyx californianus; the integuments have been removed, and the drawing is designed to show the superficial muscles of the part. Life size, by the author from his own dissections. 2. Outer view of the right pelvic limb of Geococcyx californianus, the superficial muscles removed and the next layer being exposed. Life size, by the author from his own dissections. The limb is drawn in a different position from what it is in fig. 1, which will account for the shortening of some of the muscles and their change of form. |