. Bulletin of the British Ornithologists' Club. [Bid!. Brit. Orn. CI. 1977: 97(4)] 134 present in two closely paired antero-postero rows of three straddling the midline; in specimen 2 there were 4 on the left side and three on the right (Fig- 0-. /. 2. Figure 1. Distribution of neossoptiles in Paroaria gularis specimens 1 and 2 (see Table 1): each dot represents a single feather. In ossine passerines the lateral pelvic downs, if present, are usually con- fined to rows of only 1-3 downs flanking the posterior portion of a single medial pelvic row. The downs on the pelvic region of Paroaria were


. Bulletin of the British Ornithologists' Club. [Bid!. Brit. Orn. CI. 1977: 97(4)] 134 present in two closely paired antero-postero rows of three straddling the midline; in specimen 2 there were 4 on the left side and three on the right (Fig- 0-. /. 2. Figure 1. Distribution of neossoptiles in Paroaria gularis specimens 1 and 2 (see Table 1): each dot represents a single feather. In ossine passerines the lateral pelvic downs, if present, are usually con- fined to rows of only 1-3 downs flanking the posterior portion of a single medial pelvic row. The downs on the pelvic region of Paroaria were some- what unusually prominent. This was particularly true in the unhatched specimen where the downs, in groups of 2, 2, and 4, formed a discontinuous row on the left side, while groups of 2 and 5 formed the row on the right side; in the hatched specimen the downs were in continuous groups of 3 and 4 downs on the two sides. The lateral pelvic rows of both specimens were exactly aligned with the anterior paired rows of neossoptiles in the mid-dorsal region. In fact, the separation of these into pelvic and mid-dorsal regions of the spinal tract was nearly arbitrary in the younger Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Ornithologists' Club. London : British Ornithologists' Club


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