94 AI^S^UAL KEPORT. 



SUB- FAMILY 2. HARPACTICIN^. 



Characters. — External ovary only one. 





* Cephalothorax 4-jointed. 



Genus 1. 



Canthocamptus, Westtvood. 



Genus 2. 



Harpacticus, Edivards. 



Genus 3. 



Westweodia, Dana. 



Genus 4. 



Alteutha, Baird. 



Genus 5. 



Metis, Philippi. 



Genus 6. 



Clytemnestra, Dana. 



Genus 7. 



Setella, Dana. 





** Cephalothorax 5-jointed 



Genus 8. 



Laophon, Philippi, 



Genus 9. 



Oncsea, Philippi. 



Genus 10. 



uEnippe, Philippi. 



Genus 11. 



Idya, Philippi. 



Genus 1. Canthocamptus. 



Bibliography. — Monoculus, lAnnceus, Fdbricius, Jurine, etc. 

 Cyclops, Midler, Ramdohr, Latreille, etc. 

 Cyclopsina (part), M. Edwards. 

 Canthocamptus, Westtvood, Partington's Cyclop. Nat. Hist. art. 



Cyclops; Entomologist's text-book, 115. 

 Canthocarpus, Baird, Trans. Berw. Nat. Club. 

 Harpacticus (part) Dana, Proc. Amer. Acad. Arts and Sci., 1847. 

 Nauphilius, Philippi, Ann, Mag. Nat. Hist., 1840; Wiegm. 

 Archer, 1843. 



Characters. — Body scarcely flattened, generally linear or narrow. Feet of the 

 first pair (second jaw feet of Baird) more often small; those of 

 the second pair with two rami, rami three jointed. Antennae of 

 the female with an appendage at the end of the fourth joint, 

 those of the male both with a geniculating joint. Appendix to 

 base of the abdomen small. Generally no sudden transition from 

 the segments of the thorax to those of the abdomen. 



Canthocamptus minutus. Bd. 



Bibliography. — Cyclops minutus, Muller, Zool. Dan. Prod., No. 2409, 1776; 

 Entomostraca, 101, t. 17, f. 1-7. 



Ramdohr, Beyt, zur Naturg., 10-13, t. 3, f. 1-9. 



Latreille, Hist. Nat. Crust., IV. 266. 



Bosv, M6m. Hist. Nat. Crust., ii. 257. 



Lamarck, Hist. Aus. Vert., V. 189. 



Baird, Trans. Berw. Nat. Club, i. 97, 62, f. 1,19,20, etc. 



Monoculus. Gmelin, Linn. Sgot. Nat. Edit. 13th, i. 2997, No. 11. 



Fabricius, Ent. Syst., ii. 499, No. 45. 



Manuel, Encyc. mith., vii., 719, t. 267. 



Monoculus staphylinus, Jurine, Hist. Nat. Monoc, 74-84. 



Cyclops Desmarest, Cons. Gen. Crust. 363, t, 53. 



Baird, Trans. Berw. Nat. Club, i. 97. 



