. Alaska. Natural history -- Alaska; Scientific expeditions; Alaska. i-^gp^ <2!^p2^ 56 Figs. 56 and 57. Lumhricilltis franciscanus. Septal glands. — These are thick and rounded, and the septal part is about equal to the interseptal part. Dorsal vessel has already risen in XVI. How much further it ex- tends posteriorly I do not know, as I did not section further. In that somite it is large and covered with long chloragogen glands. Similar glands also surround the intestine throughout its length. Spermatheca: (fig. 56).—The ampulla is rounded, oval, or sometimes a little pointed. The opening


. Alaska. Natural history -- Alaska; Scientific expeditions; Alaska. i-^gp^ <2!^p2^ 56 Figs. 56 and 57. Lumhricilltis franciscanus. Septal glands. — These are thick and rounded, and the septal part is about equal to the interseptal part. Dorsal vessel has already risen in XVI. How much further it ex- tends posteriorly I do not know, as I did not section further. In that somite it is large and covered with long chloragogen glands. Similar glands also surround the intestine throughout its length. Spermatheca: (fig. 56).—The ampulla is rounded, oval, or sometimes a little pointed. The opening connecting with the intestine is not at the apex but a little below it. The walls of the ampulla are thin. The duct is straight, cylindrical, and of even thickness. It is covered along its whole length with glands which are much longer at the base of the spermatheca than at the junction with the ampulla. The duct and ampulla are of about the same 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 Harriman Alaska Expedition (1899); Washington Academy of Sciences (Washington, D. C. ); Harriman, Edward Henry, 1848-1909; Merriam, C. Hart (Clinton Hart), 1855-1942. New York, Doubleday, Page & company


Size: 1588px × 1574px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyo, bookyear1901