Chandraniscus negoescuae George 2004, n. sp.
Chandraniscus negoescuae n. sp. (figure 7) Diagnosis. Chandraniscus with cephalon having a convex anterior margin and lacking a median projection. Posterior three pereonites showing a clear decrease in width from pereonites 5–7. Pleotelson shield-like, with the sharp posterolateral angles and the ur...
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| Format: | Other/Unknown Material |
| Language: | unknown |
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2004
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| Online Access: | https://zenodo.org/record/5259760 https://doi.org/10.5281/zenodo.5259760 |
| Summary: | Chandraniscus negoescuae n. sp. (figure 7) Diagnosis. Chandraniscus with cephalon having a convex anterior margin and lacking a median projection. Posterior three pereonites showing a clear decrease in width from pereonites 5–7. Pleotelson shield-like, with the sharp posterolateral angles and the uropods extending beyond the rounded apex of the pleotelson. Antenna 1 with flagellum of five articles, antenna 2 with flagellum of 11 articles. Depth is the minimum depth of occurrence; distribution is the general zoogeographic area of distribution. *Eurybathyal species. Material examined. Holotype: intersex, length 2.1 mm, maximum width 0.9 mm. USNM Cat. No. 138675. Type locality. R / V Eastward Sta. 7810, site Sigma over the continental rise off North Carolina. Etymology. This new species is named in honour of the Romanian isopodologist Dr Ileana Negoescu with whom I had the pleasure of studying the Antarctic anthurid isopods at the Antipa Museum of Natural History, Bucharest, in the summer of 1979. Description. Body oval, cephalon broadly rounded anteriorly without a median projection. Cephalon almost twice as long as the first pereonite. Anterior three pereonites subequal in length, pereonite 4 longer than any anterior pereonite. Lateral sutures between anterior five pereonites well-developed. Pereonite 5 significantly longer than either pereonite 6 or 7. Pleotelson shield-like, with posterolateral angles produced, slightly beyond the rounded posterior apex. Pleotelson as long as the posterior three pereonites combined. Antenna 1 with basal peduncular article partly concealed by the cephalon and second article elongated, with a flagellum of five articles. Antenna 2 with four peduncular articles, basal two articles short, articles 2 and 3 elongated, with a flagellum of 11 articles. The type specimen is unique, with both male and female secondary sexual appendages and is undoubtedly not a manca since pereonite 7 is well-developed. It is known that asellote isopods, in the early stage of ontogenetic development, seem ... |
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