Lernaeenicus

Raja, Kuzhanthaivel, Saravanakumar, Ayyapan, Gopalakrishnan, Ayyaru, Vijayakumar, Ramalingam, Hwang, Ui Wook & Maran, Balu Alagar Venmathi, 2016, The genus Lernaeenicus Lesueur (Copepoda, Siphonostomatoida, Pennellidae) in India: a checklist with notes on its taxonomy and ecology, Zootaxa 4174 (1), pp. 192-211 : 196-197

Lernaeenicus sp. 1

( Fig. 8 )

Material examined. Seven ♀♀ (CASMB-59) from all over the body of Indian anchovy Stolephorus indicus (van Hasselt, 1823a) ( Clupeiformes : Engraulidae ) and rainbow sardine Dussumieria acuta (Valenciennes in Cuvier & Valenciennes, 1847b) ( Clupeiformes : Dussumieriidae ) (Table 1).

Diagnostic features. Body length 3.5–4.1 cm. Head square-shaped in dorsal aspect, pair of dorso-lateral knobs present instead of horns, central dorso-median grooves dividing two knobs into lateral knobs. One median knob located on dorsal side of posterior part of head. Four pair of free thoracic somites located at posterior part of neck. Anterior part of head bearing three processes, longer than dorso-lateral knobs. Both anterior lateral processes slightly curved towards median process. Neck long and thin, but wider near trunk. Trunk short, but wider than neck. Abdomen as long as trunk. Egg strings long and narrow, carrying 55–65 eggs.

Figures

FIGURE 8. Lernaeenicus sp. 1 infecting Stolephorus indicus (van Hasselt, 1823 a) (A) and Dussumieria acuta Valenciennes in Cuvier & Valenciennes, 1847 b (B); (C) internal haemorrhage at the site of head attachment; (D) trunk hind end; (E) head, dorsal view; (F) head, lateral view; (G) head, ventral view.