Figs 12–21 in A review of the volvatory Polydesmida, with special reference to the patterns of volvation (Diplopoda)

Figs 12–21. Structure of some 'oniscoid' Polydesmida. 12–14. Crenatidorsus grandifoliatus Zhang & Wang, 1993 (Doratodesmidae), anterior body portion, left half of body segment 7, and left gonopod, lateral, ventral, and mesal views, respectively. 15 & 16. Ascetophacus macclurei Hoffman, 1977 (Doratodesmidae), anterior body portion and cross-section of a midbody segment, lateral and caudal views, respectively. 17–19. Crypturodesmus sp. (Oniscodesmidae), anterior body portion, right half of body segment 7, and caudal body end, lateral, ventral, and ventral views, respectively. 20 & 21: Cyrtodesmus sp. (Cyrtodesmidae), anterior and posterior body portions, lateral view. [12 & 13, original, male from China, Yunnan, Mengzi County, Cave Chi Be Yi Dong, 07.01.1989, leg. P. Beron (Sofia Museum); 14 after Zhang & Wang (1993); 15 & 16 after Hoffman (1977) (reprinted courtesy of Bishop Museum Press); 17–19, original, male from Brazil, Mato Grosso do Sul, Bonito, Gruto da Carneiro, 6–8.04.1998, leg. R. Pinto-da-Rocha & G. Sessegolo (São Paulo Museum); 20 & 21, original, male from Peru, Prov. Loreto, island at mouth of Yanayacu River, ca 65 km downstream Rio Amazonas from Iquitos, whitewater inundation forest, rotton wood, 22.03.1998, leg. J. Adis, S. Golovatch & A. Mármol (Moscow Museum). Scale bar 1.0 mm (12 & 13) and 2.0 mm (17–21), others reproduced not to scale.]