Smithsonian miscellaneous collections . ctly into a laterallycompressed cavity of the dorsal lobe of the aedeagus. At the baseof the latter this open cleft passes into a short tubular meatus, whichleads into a large inner chamber of the endophallus. In each lateralwall of the phallotreme cleft are two elongate parallel sclerites ( C, o, q), from the outer ends of which project the external apicalprocesses {n, p). The dorsal (anterior) sclerites (o) end proximallyin the meatus, where they are connected with each other by a strongtransverse arch {t) in the dorsal wall of the passage. The v
Smithsonian miscellaneous collections . ctly into a laterallycompressed cavity of the dorsal lobe of the aedeagus. At the baseof the latter this open cleft passes into a short tubular meatus, whichleads into a large inner chamber of the endophallus. In each lateralwall of the phallotreme cleft are two elongate parallel sclerites ( C, o, q), from the outer ends of which project the external apicalprocesses {n, p). The dorsal (anterior) sclerites (o) end proximallyin the meatus, where they are connected with each other by a strongtransverse arch {t) in the dorsal wall of the passage. The ventral(posterior) sclerites ((/) extend proximally beyond the dorsal scleritesa short distance, where they become much narrowed, and then eachmakes an abrupt sigmoid flexure {s) dorsally in the lateral wall ofthe meatus, beyond which it expands anteriorly as a large plate (m)in the lateral wall of the endophallic chamber. The anterior end ofeach lateral endophallic plate is produced beyond the lumen of the h g k bf m_^Pal 267 Epph bf z. Dej G ejs y Pal Fig. 25.—Male genitalia of Dissostcira Carolina. A, the phallic organs exposed by removal of tenth and eleventh segments anddorsal and lateral parts of ninth segment. B, lateral view of epiphallus andaedeagus with supporting floor of genital chamber. C, lateral view of phallicorgans after removal of muscles s66 and 26/ (A), showing muscles of endo-phallic bulb. D, dorsal view of phallic organs and floor of genital , aedeagus and endophallic bulb, ventral view. F, same, dorsal view. G,median section of aedeagus and endophallus, with terminus of ejaculatory , lateral view of endophallus, distal part of aedeagus, and terminus of ejacu-latory duct, muscles removed. For abbreviations, see fig. 24. c/. sclerites giving insertion to retractor muscles(261); h, lateral lobe of epiphallus; ;, bridge of epiphallus; /, anteriorprocess of epiphallus; k, posterior process of epiphallus; Jii, proximal part ofdorsal lobe of aede
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Keywords: ., bookauthorsm, bookcentury1800, bookdecade1860, booksubjectscience
