Scaphocalanus echinatus

(Farran, 1905)

Females: Inner spine of P5 extends far short of distal end of terminal spine. More characters can be accessed by backtracking the key:
Page 750

Males: Total length less than 2.4 mm; Ur3 with a length:width ratio of about 100:86. More characters can be accessed by backtracking the key:
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