The Annals and magazine of natural history; zoology, botany, and geology . which latter are normal ambulatory legs. When isolated and properly prepared, it is possible todetect in these buds some darker, more thickly chitinizedregions still destitute of any definite outline ; such are atleast the only differentiations that have ever been mentionedby authors acquainted with the subject. It was therefore greatly surprising to come across anutterly different structure in the immature male Brachy-desmusforming the subject of this note. Instead of thelow buds, a large membranous pouch-like body was
The Annals and magazine of natural history; zoology, botany, and geology . which latter are normal ambulatory legs. When isolated and properly prepared, it is possible todetect in these buds some darker, more thickly chitinizedregions still destitute of any definite outline ; such are atleast the only differentiations that have ever been mentionedby authors acquainted with the subject. It was therefore greatly surprising to come across anutterly different structure in the immature male Brachy-desmusforming the subject of this note. Instead of thelow buds, a large membranous pouch-like body was foundto emerge from the coxal aperture (figs. 2 & 3). Thiswas considerably developed transversely, being apparentlycomposed of two pouches fused together. It was gibbousanteriorly and slightly bent backwards so as to present aconcave posterior surface, and situate on the apex were Ann. clfe Mag. N. Hist. Ser. 9. Vol. i. l\) 282 Mr. 11. \Y. Brolemann on a peculiar the two semicyliudrical buds (/>) spoken of as met with innormally developed immature males. Fig. Ventral view of the 7th segment of an immature Brachydesmtts superus,Ft/.., at its last larval stage, showing-the semicyliudrical bud-shapedgonapods {b) in front of the 9th pair of legs {P9). Fig. 2.
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