Lo The Malacostraca of Natal 
SESARMA QUADRATUS (Fabricius), 1798. 
See reference as above, p. 321. 
Two female specimens carrying numerous ova were obtained by Mr. 
D. R. Boyce in Durban Bay. 
SESARMA TETRAGONUS* (Fabricius), 1798. 
' See reference as above, p. 321. 
The length and breadth of a female specimen measured between the 
antero-lateral angles and from front to posterior margin were just 
equal, 30 mm., the breadth of the sinuous front from orbit to orbit 
being 18mm. The sharp tooth behind the antero-lateral projects a 
little beyond it, thus at that point making the breadth of the carapace 
slightly greater than its length. The pleon of the female is very broad, 
reaching 25 mm. in the third and fourth segments, but the telson 
abruptly diminishes to a width of 5 mm., equal to its length. 
Locality. The specimen was taken in Durban Bay by Mr. D. R. 
Boyce. 
Genus PARASESARMA, de Man. 
1895. Parasesarma (Subgen), de Man, Zool. Jahrb., vol. ix. 
1897. P., Rathbun, Pr. Biol. Soc. Washington, vol. xi, p. 90. 
1916. P., Tesch, Zool. Med. Mus. Leiden, pt. 3, pp. 127, 235. 
PARASESARMA CATENATUS (Ortmann). 
1897. Sesarma catenata, Ortmann, Zool. Jahrb., vol. x, p. 334, pl. 17, 
Toes oa, 1: 
1905. Sesarma catenatum, Stebbing, Mar. Invest. 8. Afr., vol. iv, p. 
44 (S.A. Crust., pt. 3). 
1910. S. c¢., Stebbing, Ann. S. Afr. Mus., vol. vi, p. 322, (S.A. Crust, 
pt. 5). ; 
1916. Sesarma (Parasesarma) catenata, Tesch. Zool. Med. Mus. 
Leiden, pt. 3, pp. 141, 220. 
This species I have already discussed at some length in 1905. 
Characters for distinguishing Parasesarma from the other subdivisions 
of the old genus Sesarma are supplied in Dr. Tesch’s elaborate treatise. 
The specimen now examined was collected by Mr. H. W. Bell 
* Misprinted tetragonum, in vol. i, p. 438. [Editor]. 
