49 



the family Pygmaeidae might be divided further. Barnard (1930), hav- 

 ing no personal material and purely from nomenclatural considerations, 

 proposed that the name of the family be changed to Archaeoscinidae 

 44 since it did not include the genus Pygmaeus, from which the family 

 could derive the name Pygmaeidae. This anomaly had been pointed out 

 earlier, by Pirlot (1929). 



Later, Stephensen and Pirlot (1931) separated the genus 

 Microphasma into a special family, Microphasmidae, in which the 

 genus Mimonecteola was later included (Vinogradov, 1957). Thus the 

 family Archaeoscinidae was left with two genera: Archaeoscina and 

 Micromimonectes. According to Stephensen and Pirlot (1931) and 

 Vinogradov (1956), Micromimonectes is represented only by adult 

 females, and Archaeoscina by males and sexually immature females. 



A revision of available data compels us to include the genus Par- 

 alanceola Barnard in the family Archaeoscinidae. 



Thereby the scope of the family accepted by us includes two genera: 

 Archaeoscina and Paralanceola. 



KEY TO GENERA OF FAMILY ARCHAEOSCINIDAE 



1. Pereopods V-VII with long, strong, nonretractile claws. Antennae 11 



in males not terminating in whiplike flagellum 



1 . Archaeoscina Stebb. 



— Pereopods V-VII with small retractile claws. Antennae II in males 

 with long whiplike flagellum 2. Paralanceola Bar. 



1. Genus Archaeoscina Stebbing, 1904 



Stebbing, 1904: 19; Stephensen and Pirlot, 1931: 534; Vinogradov, 

 1956: 199; Bowman and Gruner, 1973: 10. — Micromimonectes Wolte- 

 reck, 1906a: 190. 



The body is smooth, the integument transparent. The pereon in adult 

 females is spherically bulging due to the distension of somites I-V. In 

 males and young females the body is scinoid. The head is short and 

 high. The eyes are small. Antennae I in females have a three-segmented 

 peduncle, in males a two-segmented peduncle; in females the antennae 

 are shorter than the first two pereon somites, in males equal to the first 

 three pereon somites. The articles of the flagellum in antennae II are 

 conical in females and virgate in males. The inner lobes of maxillae II 

 are broader and shorter than the outer lobes. The inner lobes of the 

 maxillipeds are separated. Pereopods III and FV have an amygdaloid 5th 

 article. Pereopods V-VII have nonretractile claws. 



Type species: Mimonectes steenstrupi Bovallius, 1885. 



