434 DISCOVERY REPORTS 



Stage IV? (Fig. 38). Length 8 mm. (pre-labral 4-4 mm. ; post-labral 3-6 mm.): 

 eye and eye-stalk 3-5 mm. 



Antennule with peduncle of two segments. Antenna very short, bifurcate at end. 



Maxilla with minute, narrow, apical segment, with or without setae. Of three ap- 

 parently identical specimens two were without setae and one with four setae. Maxilli- 

 pede I absent. Maxillipedes 2 and 3 without exopod. Legs without coxal spines. Leg 5 

 a small bud. 



Abdomen small, narrow, unsegmented, without pleopods or uropods. 



Stage V.^ Length 12-14 mm. 



Antennule with peduncle of three segments. Antenna a little longer than segment i 

 of antennule, unsegmented or with basal segment marked off; with outer pointed process 

 at end of this basal segment. 



Maxilla with apical part not expanded, without setae. Leg 5 and abdomen as in stage 

 VI, but uropods indicated by a pair of small folds. 



Stage VI }. Length 20 mm. 



Antenna reaching to segment 2 of peduncle of antennule, its peduncle shorter than 

 the flagellum. 



Maxilla not expanded. 



Abdomen still small unsegmented. Pleopods represented by small folds; uropods 

 bilobed rudiments. 



Stage VII ? (Fig. 39). Length 27-28 mm. 



Ratio of length to width of fore-body i : 1-69; of eye to total length 1:3-4. 



Lengths of segments of antennular peduncle as 26 : 23 : 23. Antenna with peduncle 

 of three distinct segments, the outer pointed process being on segment 2. Segment 3 

 narrow and appearing to form part of the flagellum which reaches beyond the peduncle 

 of the antennule. 



Maxilla without setae, but with apical part widening. Leg 5 with basal segment 

 distinct. 



Abdomen showing segmentation dorsally. Pleopods small, not bilobed; uropods 

 shorter than telson, the endopod not jointed to stem. 



Stage VIII ? (Figs. 40, 41). Length 33-36 mm. 



Ratio of eye to body length i : 3-15. 



Segment 2 of antenna very much wider than segment 3. 



Maxilla without setae, widening at end. Maxillipede i a finger-like process, shorter 

 than maxilla. Maxillipedes 2 and 3 with small papillae representing exopod. Leg 5 as 

 long as abdomen, of four segments ; segment 2 with a small bud, perhaps representing 

 exopod. 



Pleopods bilobed ; uropods longer than telson, the branches jointed to basis. Gills 

 absent. 



Stage IX? (Fig. 41). Length 41 mm. (British Museum specimen from Congo 

 Expedition). 



Ratio of eye to body length 1:3-4. 



