| 释义 |
‖ thelycum|ˈθiːlɪ-, ˈθɛlɪkəm|
Pl. thelyca.
[mod.L., ad. Gr. θηλυκόν, neuter of θηλυκός feminine, f. θῆλυ-ς female.]
Name for a structure on the ventral surface of the thorax in the female of certain macrurous crustaceans.
1888C. S. Bate in Challenger Rep. XXIV. 244 The ventral plate or thelycum in the female [Penæus canaliculatus]. Ibid. 245 The peculiar formation of the complementary external female apparatus which I propose to call thelycum. |