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Aiteng Ater, New Genus, New Species, an Amphibious and Insectivorous Sea Slug That Is Difficult to Classify (mollusca: Gastropoda: Opisthobranchia: Sacoglossa(?): Aitengidae, New Family)
| Content Provider | Semantic Scholar |
|---|---|
| Author | Buatip, Somsak |
| Copyright Year | 2009 |
| Abstract | Aiteng, new genus, shows characteristics of both Cephalaspidea and Acochlidea (pre- pharyngeal nerve ring) and Sacoglossa (pharynx, radula uniseriate, one tooth functional). As no family could be identifi ed, the Aitengidae, new family, has been erected. It is placed in the Sacoglossa with which it has most characters in common. The type species is Aiteng ater, new species, a small, inconspicuous, grey to blackish opisthobranchs without shell, rhinophores, gills or other protuberances. The large eyes are lateral in uncoloured fi elds. The notum has wide free borders along the sides and posterior part. The head is extending, but can largely be retracted under the notum. The pharynx is large and the radular ribbon has tens of uniserial teeth in both ascending and descending limbs with one functional tooth in front of the pharynx. The teeth are triangular with a wide base, a strong central cusp and small denticles along sides. The salivary ducts are vesicular, the salivary glands consist of several tens of separate follicles. The main branch of the digestive gland runs from the small stomach posteriorly via the upper part of body branching off laterally and covering a large area with pale vessels that have small grey follicles in the upper part of the body except over the renopericardium. Dorsal vessels run just under the skin between the renopericardium and the border of the notum. Tens of hermaphrodite follicles are in the posterior part of the body. The penis is slender, unarmed. The prostate around the internal vas deferens above the pharynx. The female opening is in the right side close to the anus. Aiteng ater, new species, occurs on the solid mud bottom of dense mangrove forests in the Pak Phanang Bay, Gulf of Thailand. The specimens live amphibiously in and around small pools high in the intertidal zone, only covered by the sea during spring high tides. The slugs reach a length of 8-12 mm and feed on insect larvae and pupae. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://lkcnhm.nus.edu.sg/app/uploads/2017/06/57rbz495-500.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
