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Egg Capsule of Hongeo koreana (Chondrichthyes: Rajiformes: Rajidae)  

Jeong, Choong-Hoon (Research Center for Coastal Environments of Yellow Sea, Inha University)
Kim, Jin-Koo (Department of Marine Biology, Pukyong National University)
Publication Information
Korean Journal of Ichthyology / v.21, no.4, 2009 , pp. 283-286 More about this Journal
Abstract
The egg capsule of Hongeo koreana is newly described based on two egg capsules extracted from the uterus of a female collected near the type locality, the southwestern coast of the Korean Peninsula. The egg capsule of H. koreana has the following characters: medium sized, measuring 124.5~133.7 mm in total length including horns, 102.8~109.4 mm in length excluding horns, and 41.0~42.2 mm in maximum width; asymmetrical, with the egg capsule more convex ventrally in lateral view; the surface relatively smooth, with longitudinal striations distinct, and covered with masses of sticky silky fibers; anterior and posterior aprons distinct; all four horns short, tube-like in shape, elliptical in cross section, anterior horns recurved inwardly; respiratory fissure present at tip of each of the four horns. The color of the fresh capsule is bright brown.
Keywords
Hongeo koreana; egg capsule; cartilage fish; reproduction; taxonomy; biology;
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