LARVAL DEVELOPMENT 



2IS 



Islands form, especially in the large number of spines on the abdominal segments. 

 Differences exist in the arrangement of these spines, in the shape of the antennal scale 

 and in the presence of spines on the whole length of the posterior margin of the 

 carapace. 



The aciculate form of the antennal scale given by Lebour (1930) as a generic 

 character of Mnnida and stressed as such by Gurney {loc. cit.) is more pronounced in 



Fig. 2. Larval stages oi Miinida. 

 a. First stage, length 3-0 mm. b. Second stage, length 4-0 mm. 



previously described forms than in the Falkland Islands larvae. Although approaching 

 Galathea in this feature, these larvae belong indisputably to the genus Mnnida, Galaihea 

 not being known to occur in the area. The distinguishing character of the larvae of the 

 two genera is the palp of the first maxilla — not the second as given by Lebour (1930) — 

 which is composed of one segment in Mnnida and of two in Galathea. The aciculate 

 form of the antennal scale, as figured by Gurney and Lebour, cannot, therefore, be 

 looked upon as a generic feature, and it would seem probable that the two genera merge 

 one into the other in this respect. 



The rostrum and the postero-lateral spines of the carapace are not as long in the 

 Falkland larvae as in M. banffica larvae, characters showing an approach to the larvae 

 of Galathea. The telson remains the same as in the northern species, having seven spines 



