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Ercolania kencolesi  Grzymbowski, Stemmer & Wägele, 2007

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Ercolania kencolesi is a small elongate animal with a pair of relatively large solid rhinophores. Let me quote Grzymbowski, Stemmer & Wägele (2007): "Size from 4 mm up to 6 mm. Body elongate; foot tapering posteriorly; anterior foot without a notch and any propodial tentacles, but slightly extended to lateral sides; rhinophores long, solid and digitiform; eyes lying behind rhinophores on lateral sides; renopericardial prominence inconspicuous; cerata club-shaped to sausage-shaped, in one to two rows, with smaller ones on outer side; cerata not standing very close, those of similar size in opposite position; central notum free of any cerata. Overall colour of body green; under higher magnification, green disintegrating to green dots representing terminal parts of numerous tiny digestive glandular branches. Stripes never present, not even in starving animals. Rhinophores green with white tips; in median part with a white blotch nearly circling rhinophore. Head completely green, eyes hardly visible. Anterior margin of foot light green to whitish. Cerata darker green, darkest at apical end; subapical white blotches present, forming an incomplete ring; more patches especially in dorsal areas of cerata. After starving for two to three days, animals showing a more brownish colour and eyes becoming more visible."
The Sea Slug Forum writes:
"This species lives in association with the algae Boergesenia forbesii (Siphonocladales), and alga which consists of giant bubble-shaped cells. Ercolania kencolesi lives both in and out of the algal cells, but to feed it pierces a hole in the giant cell, crawls inside and ingest the cell contents, including the chloroplasts along the inside cell wall. Egg masses are also laid inside the algal cell."
References:
Yvonne Grzymbowski, Kristina Stemmer & Heike Wägele, 2007. On a new Ercolania  Trinchese, 1872 (Opisthobranchia, Sacoglossa, Limapontiidae) living within Boergesenia  Feldmann, 1950 (Cladophorales), with notes on anatomy, histology and biology.
Zootaxa, 1577: 3-16
Rudman, W.B., 2007 (September 13) Ercolania kencolesi Grzymbowski, Stemmer & Wagele, 2007.
[In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/ercokenc
More information on Ercolania kencolesi are on Bill Rudman's Sea Slug Forum!
How to cite:
Köhler, E. (2018), published 24 May 2018, Ercolania kencolesi  Grzymbowski, Stemmer & Wägele, 2007
available from https://www.Philippine-Sea-Slugs.com/Sacoglossa/Ercolania_kencolesi.htm