. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 226 Annals of the South African Museum. of one term for the brood-pouch of a non-conglobating form, and another term for that of a conglobating form, is not justified. Even the extension and invagination of the membrane between the 5th and 6th sternites cannot be described as an internal pouch.* From the roof of the brood-pouch, from the sternites, several delicate processes hang down. These processes have been termed " cotyledons " (see Zimmer, Handb. Zool., iii, pp. 728, 744, 1926-27
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 226 Annals of the South African Museum. of one term for the brood-pouch of a non-conglobating form, and another term for that of a conglobating form, is not justified. Even the extension and invagination of the membrane between the 5th and 6th sternites cannot be described as an internal pouch.* From the roof of the brood-pouch, from the sternites, several delicate processes hang down. These processes have been termed " cotyledons " (see Zimmer, Handb. Zool., iii, pp. 728, 744, 1926-27).. Fig. 13.—a, b, Diagrammatic cross-sections of peraeon of " non-conglobating " { Marioniscus) and " conglobating" ( Periscyphis or Dijploexochus) woodlice, showing gut, hepatic tubules, and cotyledons ; c, diagrammatic sagittal section of peraeon and pleon of a conglobating woodlouse of the Cubarid type. Nerve-cord represented by a single line; sternites num- bered ; the dotted line indicates the invaginated extension of the sternal membrane between sternites 5 and 6. They are always present (in the Oniscine woodlice), though varying in number and position, Marioniscus spatulifrons and Periscyphis kunenensis have 2-3 on each of segments 3-5, Nahia hirsuta and Bethalus mucidus have 2-3 on each of segments 2-5 (cf. Vandel, Bull. Biol. Fr. Belg., lix, pp. 344 sqq., 1925 ; and also Arcangeli's remarks on the incubatory pouch, Ann. Mus. Zool. Univ. Napoli, v, No. 23, pp. 6 sqq., 1929). In order to study successfully the very numerous genera of this family, it is necessary to appreciate some of the anatomical termino- logy introduced by Budde-Lund. In 1910 he printed in Sjostedt's Kilimandjaro-Meru Expedition (vol. iii, pp. 8-10), a very handy * The pouch of the kangaroo is Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illu
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