REPORT ON THE CRUSTACEA MACRURA. 



Tribe, 



NORMALIA 

 (continued.) 



Monocarpidea, 



Haplopodea, 



Family. 

 Thalassocarid.e, 



Atyib^, 

 pontoniid^, 1 



Caricyphid-e, 1 

 acanthephyrid.e, 1 



PAtlMONID^ 1 



Nematocarcinid*, 1 



Tropiocaeid^, 1 . 

 Stvlodactylid^, 

 Pasiph«id«,' 

 oodeopid*, 



Hectarthropid^e, 



Genus. 



( Thalassocaris. 

 Diaphoropus. 

 ( Kyptocaris. 



■■{ 



Atya, . 

 Caridina. 



Pontonia. 

 (Typton). 



I 



j Caricyphus. 

 ■I Rhomaleocaris. 

 ( Anebocaris. 



Bentheocaris. 



Acanthephyra. 

 Systellaspis. 

 Oplophorus. 

 Campylonotus. 



Palsemon, . 

 Palxmonella. 

 Bithynis. 

 Brachycarpus. 



I Nematocarcinus. 

 | Stochasmus. 



Notostomus. 

 Tropiocaris. 



Hymenodora, 



Stylodadylus. 



I LeptocJiela. 

 ■! Pasiphsea. 

 [ Orphania. 



Oodeopus. 



Prodetes. 



Icotopus. 

 • Hedarthropus 

 j Eretmocaris. 

 [ Amphion. 



481 



Brephalos. 

 Zoea. 



Zoea. 



Megalopa. 



Tribe Crangonidea. 



This tribe contains those normal Phyllobranchiata in which the first pair of pereiopocla 

 is subchelate, and the second pair is feeble or imperfect, the carpos being uniarticulate. 



Family Ceangonidj;. 

 Carapace dorsally flattened and laterally compressed. Eostrum dorsally flattened ; 

 frontal margin laterally extended ; posterior margin laterally overlapped by the first 

 somite of the pleon. Pleon laterally compressed posteriorly. Ophthalmopoda short and 



1 I have formed these families since the descriptive part was printed. For their definition see p. 927. 



(ZOOL. CHALL. EXP. — PART LH. — 1888.) Fff 61 



