1. Redescription of the commercially harvested jellyfish, <italic>Crambionella orsini</italic> and <italic>Lobonemoides gracilis</italic> (Cnidaria: Scyphozoa) from Sri Lanka.
- Author
-
Karunarathne, Krishan D., Amaya, H.K.T., Digamadulla, D.S., and de Croos, M.D.S.T.
- Subjects
- *
FISHERY management , *CNIDARIA , *HYDROZOA , *MEDUSOZOA , *JELLYFISHES - Abstract
Two types of edible jellyfish, namely ‘ball-type’ and ‘white-type’, were reported to be commercially harvested respectively from the southeast and northwest coasts of Sri Lanka, but their taxonomic identity was unknown. Therefore, medusae collected in the ‘
Waya-jel -Survey’, together with specimens from museums, were examined, comparing their morphomeristic data with information from the literature. As per results, the ‘ball-type’ and ‘white-type’ jellyfish species were recognized respectively asCrambionella orsini (Vanhöffen 1888) andLobonemoides gracilis Light 1914 for the first time from Sri Lanka, with a detailed account of morphological features. Among the four valid species of the genusCrambionella ,C. orsini is distinguished by the presence of 16 velar lappets per octant, without tubercles. The two congeners ofL. gracilis, namelyL. robustus Stiasny 1920 andL. sewelli Rao 1931, were synonymized toL. gracilis , makingLobonemoides monospecific, thusL. gracilis is recognized by the presence of papillae on the exumbrella; 1–6 elongated velar lappets between two successive rhopalia; and the window-like openings and long, spindle-shaped appendages on the oral arms. Likewise, the present study re-describesC. orsini andL. gracilis providing a basic component for efficient management of jellyfish fishery resources in Sri Lanka as well as in other Asian countries. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF