BIHANG TILL K. SV. VET.-AKAD. HANDL. BAND 11: N:o 16. 33 
- 
(RE Stepbingipmysp: 
Diagn. Body smooth. Dactyli of first two pairs of pereio- 
poda shorter than half the metacarpi. Third and fourth pairs 
robust. Genu of fifth pair narrow, not tumid; tibia very dilated. 
Femur of seventh pair elongate, longer than broad. 
Hab. Tropical parts of Atlantic. 
Gen. 4. PARALYCZEA, Criavs, 1879. 
»Die Gattungen und Arten der Platysceliden.> Arb. aus dem Zool. 
Inst. der Univ. Wien und der Zool. Station in Triest. Tom. 2, p. 186 (40). 
RP NSrTaenlis; Craus, 1879: 
Le. Pp. 186.400: 
Diagn. Body smooth. Head twice deeper than body. 
First two pairs of pereiopoda slender, elongate, with narrow, 
not serrated carpi. Third and fourth pairs slender. Femur 
of fifth pair elongated, narrow, longer than the three succeed- 
ing joints. Tibia of sixth pair with a serrated process. Peduncles 
of first pair of uropoda twice as long as broad; exterior ramus 
longer than interior. Interior ramus of second pair coalesced 
with the peduncle. Exterior ramus of last pair as long as the 
interior. 
Hab. "Tropical parts of Atlantic. 
2. P. Newtoniana, n. sp. 
Diagn. Body delicately sculpturated. Head a third deeper 
than body. First two pairs of pereiopoda robust, with carpi short, 
dilated, obtusely serrated. Third and fourth pairs robust, with 
tibie and carpi broad. Femur of fifth pair broad, irregularly 
ovate, shorter than the three succeeding joints. Tibia of sixth 
pair without process. Peduncle of first pair of uropoda un- 
commonly broad, scarcely a fourth longer than broad; exterior 
ramus shorter than interior. Interior ramus of second pair 
free, not coalesced with the pedunele. Exterior ramus of last 
pair scarcely longer than half the interior. 
Hab. Indian Ocean. 
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