1. Class: Crustacea Subclass: Copepoda Order: Eucopepoda Suborder: Calanoida Female calanoid copepods. Description: Plate 019a. Ventral view of a female calanoid copepod (Arctodiaptomus sp). Plate 019a. Ventral view of female calanoid, note small 5 th legs. Plate 019c. The 1 st antennae (right) and female calanoid (in berry) carrying single egg mass, typical of all calanoid species. Plate 019c. Female Arctodiaptomus sp., a calanoid copepod Female calanoid copepods are very hard to distinguish; as most characteristic of the species is the right 5 th leg of the male. Generally the female is determined by the presence of the male.

2. Plate 019a. Ventral view of a female calanoid copepod (Arctodiaptomus sp).

3. Plate 019a. Ventral view of female calanoid, note small 5 th legs. 5 th leg

4. Plate 019c. The 1 st antennae (right) and female calanoid (in berry) carrying single egg mass, typical of all calanoid species.

5. Plate 019c. Female Arctodiaptomus sp., a calanoid copepod.