Marine isopods collected in the Philippines by the fisheries steamer Albatross in 1907-08 . ., 121° 47 30E.), at a depth of 742 fathoms, in soft green mud. Type, catalogue number 40924,United States National Museum. Pseudione retrorsa, sp. nov. Body of adult female oblong-ovate, 9 mm.: 14 mm. (including abdominal append-ages). Color, in alcohol, yellow. Head deeply immersed in the first thoracic segment and with a narrow frontal borderbecoming wider at the sides. Eyes absent. First pair of antennae composed of fourarticles; second pair composed of five articles. All seven segments of the t
Marine isopods collected in the Philippines by the fisheries steamer Albatross in 1907-08 . ., 121° 47 30E.), at a depth of 742 fathoms, in soft green mud. Type, catalogue number 40924,United States National Museum. Pseudione retrorsa, sp. nov. Body of adult female oblong-ovate, 9 mm.: 14 mm. (including abdominal append-ages). Color, in alcohol, yellow. Head deeply immersed in the first thoracic segment and with a narrow frontal borderbecoming wider at the sides. Eyes absent. First pair of antennae composed of fourarticles; second pair composed of five articles. All seven segments of the thorax distinct. Lateral bosses are present on the firstfour segments. Lateral to these are the pleural plates, which occupy only about halfof the lateral margin. The pleural plates of the last three segments occupy almostthe entire lateral margin. All six segments of the abdomen are distinct, the sixth or terminal segment beingvery small and rounded posteriorly. Pleural plates are developed on the first fivesegments, but are not present on the sixth. There are five pairs of double-branched. Fig. 34.—Pseudione fibriata. a, Female, X2jstage, X41; c, seventh leg of female, b, microniscusX20|. 38 MAKINE ISOPODS FEOM THE PHILIPPINE ISLANDS.
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherwashi, bookyear1910
