. The Cumacea of the Siboga-expedition. Cumacea; Zoology. 11 I. Nannastacus Hanseni n. sp. (Text-fig. i, aâe). Description of adult Male. Total length 1,5 mm. Carapace about two-fifths of total length, broader than deep, dorsal surface depressed in the middle line between the swollen branchial regions and elevated posteriorly into a bilobed prominence which overhangs the succeeding somites. Pseudorostrum, seen from the side, hori- zontal, truncate. Antero-lateral angle slightly produced forwards, bluntly pointed and obscurely serrate. Seen from above the pseudorostral plates do not meet either
. The Cumacea of the Siboga-expedition. Cumacea; Zoology. 11 I. Nannastacus Hanseni n. sp. (Text-fig. i, aâe). Description of adult Male. Total length 1,5 mm. Carapace about two-fifths of total length, broader than deep, dorsal surface depressed in the middle line between the swollen branchial regions and elevated posteriorly into a bilobed prominence which overhangs the succeeding somites. Pseudorostrum, seen from the side, hori- zontal, truncate. Antero-lateral angle slightly produced forwards, bluntly pointed and obscurely serrate. Seen from above the pseudorostral plates do not meet either above or below the respiratory channel. The eyes are large, each with three hemispherical corneal lenses. The surface of the carapace, especially on the dorsal side, is beset with low, rounded tubercles. Laterally these pass into smaller granulations and near the lower margin the surface is m â "\ '/: j-Ai. i^. 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 Calman, W. T. (William Thomas), 1871-. Leyden, Late E. J. Brill
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1905
