. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. FAMILY PLEUROBRANCHAEIDAE 35. Fig. 17. Pleurobranchaea bubala sp. nov., egg mass. accompanies the efferent duct (e) inward along the retractor muscle. It is wider in the middle than in P. tarda, but less globular than that of P. inconspicua. The cuticular stylet (c) is similar to that of P. tarda and about 5 mm in length. The atrium (a) is strongly muscular, 6-9 mm long. The epithelium of the oviduct forms pouches, the spermatocyst (y). From the spermatocyst the oviduct narrows until it branches to t
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. FAMILY PLEUROBRANCHAEIDAE 35. Fig. 17. Pleurobranchaea bubala sp. nov., egg mass. accompanies the efferent duct (e) inward along the retractor muscle. It is wider in the middle than in P. tarda, but less globular than that of P. inconspicua. The cuticular stylet (c) is similar to that of P. tarda and about 5 mm in length. The atrium (a) is strongly muscular, 6-9 mm long. The epithelium of the oviduct forms pouches, the spermatocyst (y). From the spermatocyst the oviduct narrows until it branches to the unstalked bilobed spermatheca (Fig. 16G). From this point the vagina (v) or insemination duct is much wider and has a high, folded epithelium. Near the female aperture it re- ceives the accessory glands and forms a small caecum. The egg mass (Figs 16E, 17) is a coiled tube of several irregular whorls. There are one to three eggs per capsule (Fig. 16F). This species has been observed to feed on other opisthobranchs including members of its own species. Discussion The reproductive organs differ from the other species by the shape of the penial sac, the double spermatheca and the long glandular vagina. P. bubala is sympatric with P. tarda in South Africa and is distinguished by its larger size, abundant white blotches, elongate vagina, and the shape of the prostate (Figs 5A, 16G).. 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
