. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. CRUSTACEA V. Si. Chart 13. The sizes of. Aiionvx nugax from boreal, boreo-arctic and true arctic localities. (All the specimens were measured by myself except those from Scotland and the Norwegian specimens of a "A. lilljeborgii" [Sars 1S05]). would also be reckoned the obtuse denticle in p. 3—p. 4 (Norman 1900). Neither the ocular pigment (black or brown to red) nor the shape of 3. epimeral plate in the metasome are constant; and the deep dorsal im- pression in 1.
. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. CRUSTACEA V. Si. Chart 13. The sizes of. Aiionvx nugax from boreal, boreo-arctic and true arctic localities. (All the specimens were measured by myself except those from Scotland and the Norwegian specimens of a "A. lilljeborgii" [Sars 1S05]). would also be reckoned the obtuse denticle in p. 3—p. 4 (Norman 1900). Neither the ocular pigment (black or brown to red) nor the shape of 3. epimeral plate in the metasome are constant; and the deep dorsal im- pression in 1. urosome segment, by Sars (1895) considered a specific character of A. lilljeborgii, may be found in specimens of 25 mm. or more which in all other regards would be certain A. nugax. Tims there can be no doubt that all three "species" [A. nugax, , A. lilljeborgii) are only synonyms. Size and propagation. As the species is very widely distributed both in the real arctic and the boreo-arctic area, and as the size varies very much (— the arctic specimens are much larger than those from more southern localities —), I have tried to determine the sizes and the growth in the different areas. Size. From the first table and chart 13 it appears that the maximal size in boreo-arctic waters is up to abt. 20 mm., in true arctic waters up to abt. 40—50 mm. The IogolfExpeditioD. III. 8. II. 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 Danish Ingolf-Expedition (1895-1896); Københavns universitet. Zoologisk museum. Copenhagen H. Hagerup
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Keywords: ., bookcentury1800, bookdecade1890, booksu, booksubjectarcticregions
