Microcyphus ceylanicus Mortensen 1942
Authors/Creators
Description
Microcyphus ceylanicus Mortensen, 1942
Figure 2
Material studied. WUSL/ER/87 (dry, denuded) from Hiriketiya; WUSL/ER/234 (wet, with spines) from Hiriketiya; WUSL/ER/235 (dry, denuded) from Dickwella.
Literature records for Sri Lanka. Mortensen (1942, 1943a), Price & Rowe (1996), Fernando (2006), Jayakody (2012).
Distribution in Sri Lanka. Southern coast of Sri Lanka.
Recorded depth range in Sri Lanka. 1–5 m (previous records).
Habitat. Coral reefs (Price & Rowe 1996).
Observed occurrence in this study. Southern coast (Hiriketiya and Dickwella), on shore. Both of these collection sites were dominated by seagrass beds at shallow depths.
Remarks. Here, for the first time, we provide photographs of test surface details on this rarely seen temnopleurid (Fig. 2). Its test has never been figured in detail, and Mortensen (1943a) included only a photograph in lateral view, plus drawings of the apical system, ambulacral compounding, and some pedicellariae. M. ceylanicus is restricted to Sri Lanka and the Andaman Islands, and can be distinguished from other Sri Lankan regular echinoids by its light olive-green test. The test has naked interambulacral areas, each of which has a dark zigzag line along the medial sutures (Fig. 2). The spines are banded with red, brown, and white. This species is characterized by its sharply delimited naked areas in both the interambulacra and ambulacra (Mortensen 1942).
Döderlein (1888) misidentified this species as M. maculatus, an error that was rectified by Mortensen (1943a). The type specimen, collected from Sri Lanka, is housed at the Zoologische Staatssammlung München (The Bavarian State Collection of Zoology, Munich).
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Scientific name authorship
- Mortensen
- Kingdom
- Animalia
- Phylum
- Echinodermata
- Order
- Camarodonta
- Family
- Temnopleuridae
- Genus
- Microcyphus
- Species
- ceylanicus
- Taxon rank
- species
- Taxonomic concept label
- Microcyphus ceylanicus Mortensen, 1942 sec. Arachchige, Jayakody, Mooi & Kroh, 2019
References
- Mortensen, T. (1942) New Echinoidea (Camarodonta). Preliminary notice. Videnskabelige Meddelelser fra Dansk naturhistorisk Forening i KObenhavn, 106, 225 - 232.
- Mortensen, T. (1943 a) A Monograph of the Echinoidea III. 2. Camarodonta I. Orthopsidae, Glyphocyphidae, Temnopleuridae and Toxopneustidae. C. A. Reitzel, Copenhagen, 553 pp.
- Price, A. R. G. & Rowe, F. W. (1996) Indian Ocean echinoderms collected during the Sindbad Voyage (1980 - 81), 3. Ophiuroidea and Echinoidea. Bulletin of the Natural History Museum, Zoology Series, 62, 71 - 82.
- Fernando, M. (2006) Coral associated invertebrates: An overview of the current taxonomic status. In: Bambaradeniya, C. N. B. (Ed.), The Fauna of Sri Lanka. Section 3. Status of Marine Fauna in Sri Lanka. IUCN-The World Conservation Union, Gland and Cambridge, pp. 259 - 273.
- Jayakody, S. (2012) Provisional checklist of sea urchins (Echinodermata: Echinoidea) of Sri Lanka. In: Weerakoon, D. K. & Wijesundara, S. (Eds.), The National Red List 2012 of Sri Lanka; Conservation Status of the Fauna and Flora. Ministry of Environment, Colombo, Sri Lanka, pp. 370 - 372.
- Doderlein, L. (1888) Echinodermen von Ceylon. Bericht uber die von den Herren D res Sarasin gesammelten Asteroidea, Ophiuroidea und Echinoidea. Zoologische Jahrbucher, Abteilung fur Systematik, Geographie und Biologie der Tiere, 3, 821 - 846. https: // doi. org / 10.5962 / bhl. part. 1933