Itaipusa renei, Reygel, Willems & Artois, 2011
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publication ID |
https://doi.org/ 10.11646/zootaxa.3132.1.4 |
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persistent identifier |
https://treatment.plazi.org/id/B458A600-FFD6-FF9F-FF3C-FD16FAE9FA00 |
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treatment provided by |
Felipe |
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scientific name |
Itaipusa renei |
| status |
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Itaipusa renei n. sp.
(Fig. 4)
Locality. Santa Cruz Island , Bahia Academy, station IX7a, rock pool (type locality) .
Material. Two specimens studied alive. A total of six animals serially-sectioned, one of them designated holotype ( ZMUG 23245 View Materials ), the others paratypes ( ZMUG 23246-23250 View Materials ) .
Etymology. Species name dedicated to the first author's father Mr. René Reygel.
Diagnosis. Species of Itaipusa with an asymmetrical copulatory organ, containing a cirrus armed with small spines and an asymmetrical secretory organ; ejaculatory duct and prostate glands open into a cupshaped structure; male atrium with two blunt hooks (± 50 and 80 µm long); with a large globular bursa provided with a muscular bursal stalk; with atrial glands opening into common genital atrium in between bursal stalk and female duct.
Description. Live animals have two eyes, are spindle-shaped and ± 2 mm long. The body colour is pale reddish-yellow. As all eukalyptorhynchs, they can retract the anterior half of their body, almost forming a ball with only the anterior tip protruding (see Fig. 4C).
The cellular epidermis (± 12 µm thick) with a prominent basement membrane contains numerous apically-elongated, oviform rhabdites (2−4 µm long), which are absent in the head region anterior to the strong proboscis juncture sphincter. The polygonal epidermal cells (up to 30 µm wide) show several globular epitheliosomes with weakly-staining content. The animal is ciliated over the whole body surface (cilia ± 6 µm long) with a few sensory bristles (± 20 µm long) around the proboscis opening. The proboscis is ± 1 /4 of the body length long. It has the characteristic traits of a koinocystidid proboscis (see Brunet 1972; Karling 1980) and is provided with a very strong Itaipusa - type proboscis juncture sphincter (see Karling 1980: p. 260).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.