. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 236 Annals of the South African Museum. For specific purposes the outer branch of the 1st pleopod in the # may be used in conjunction with other characters ; and, with the caution that an occasional individual aberration may occur, will be found reliable. For example, I have seen examples of hirsuta, occur- ring in association with typical examples, in which the proximal point bounding the excision tends to become rounded or obsolete. This. Fig. 16.—Philoscia. a, b, c, molar penicil of P. muscorum, S
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 236 Annals of the South African Museum. For specific purposes the outer branch of the 1st pleopod in the # may be used in conjunction with other characters ; and, with the caution that an occasional individual aberration may occur, will be found reliable. For example, I have seen examples of hirsuta, occur- ring in association with typical examples, in which the proximal point bounding the excision tends to become rounded or obsolete. This. Fig. 16.—Philoscia. a, b, c, molar penicil of P. muscorum, Setaphora, and Benthanops ; d, e, f, inner spines on outer lobe of maxilla 1 of P. muscorum, Setaphora, and Benthanops ; g, h, inner plate and palp of maxilliped of Aphiloscia and Setaphora; i, j, margin of pleon segment of Aphiloscia vilis and Nahia hirsuta ; k, discrete head of N. hirsuta ; I, concrete head of Aphiloscia vilis ; m, n, pleopod 2 $, and penis and pleopod 1 $ of A. vilis ; o-r, outer lobe of pleopod 1 $ of S. cingulata, N. hirsuta, S. demarcata, and Benthanops fulva respectively ; s-v, outer view of peduncle of uropod of Komatia, P. muscorum, Aphiloscia and Setaphora (also Nahia) respectively. may occur on one side only, its fellow on the opposite side being normal. There are minute differences in the apices of the inner branch of the same appendage, as may be seen from fig. 18. The 2nd antennae also, it may be noted, are subject to some varia- tion in the proportions of the joints, especially the flagellum, owing to injury when young and consequent rejuvenation. In a long series these points are easily discounted, but single specimens might con- ceivably lead one 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 South African Museum. Cape Town : The Museum
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
