26 



joint; they have a denticle on the outer side at the base and 

 another a httle higher, and near the apex two with an inward 

 direction- Alcock speaks of them in L. pennifera as occasionally 

 bearing some tiny secondary spinules, and Heller says in regard 

 to L. clcgaiis that they have one or two little denticles belovv? on 

 the outer side, and generally another denticle outward at the base 

 over the insertion of the first peduncular joint of the inner 

 antennae. Tiie first antennae, straightened out, would reach the 

 end of the frontal spines. The chelipeds agree with Alcock's and 

 Heller's descriptions, in having spines along the fourth joint, the 

 following joints smooth, but the slender finger which just 

 matches the thumb is not half as long as the carpus or fifth joint- 

 Heller says thait this finger is " only half as long as the carpus-" 

 Alcock says " the fingers are not half the length of the palm." 

 The long second and third legs agree also with the descriptions 

 in the two authors just mentioned, the fourth joint being dis- 

 tinctly spinose^ the fifth sparsely so, the sixth chiefly at the 

 slightly dilated apical portion, and the finger on its outer margin. 

 The fourth pair of limbs is missing. The fifth pair, though 

 shorter than the preceding third pair, reach well beyond its fifth 

 joint; they have the fourth and fifth joints spinose, the sixth 

 feathered on both margins with plumose setae, the finger, as in 

 Alcock's description and Smith's figure " extremely short." The 

 pleon has a median spine on the second and on the third segment, 

 and one at each side of the base of the composite fourth; the 

 terminal segment ends very acutely. The pleon is enormously 

 distended by a multitude of small eggs. Milne-Edwards and 

 Bouvier refer to the small and numerous eggs in this species, and 

 S- I. Smith calculated that a specimen, of which the carapace 

 without the rostral spines was 12 mm. long-, was carrying 1,650 

 eggs. The length mentioried by Professor .Smith fairly 

 corresponds with that of the specimen here de- 

 scribed. Henri Milne- Edwards gives the length as 

 about an inch, but tlie measurement does not con- 

 vey much meaning, as it may or mav not include the frontal 

 spines and the three segments of the pleon which are visible in a 

 dorsal view- The pleon of the male is said by Lucas and Heller 

 to be entirely smooth. For L. valida de Haan says that the 

 second segment in the male is " unispinosus-" Alcock describes 

 the pleon of the female in L. pennifera in agreement with that of 

 the South African form, but does not say whether the male has 

 the pleon free from spines or not. 



Orange banding is perceptible on the limbs, eye-stalks, and 

 frontal spines, but the carapace ^in formalin) is colourless. 



Locality : — Two miles N- by W. of L^mbwa^umi River, Natal, 

 from 25 fathoms. 



