4i6 DISCOVERY REPORTS 



Maxillule without palp. Maxilla with exopod setose. Maxillipede 2 without exopod 

 in early stages, later with setose exopod. Maxillipede 3 with setose exopod from earliest 

 stage. Legs with large ventral coxal spines, and large dorsal coxal spines on legs 2 and 3. 

 Leg 5 unbranched, close to abdomen. Dactylus of leg 2 elongated. 



The position of this Phyllosoma is very doubtful. In general form, and in the lengths 



of the antennular segments, it agrees with those Phyllosomas which are referred to 



Panulirus, but in the retarded development of leg 4 it resembles Paliminis. It seems most 



probable that it belongs to a distinct genus, but I refer it none the less provisionally to 



-Pamilinis. 



The series of specimens is not suffici- 

 ently large to give good evidence for the 

 number of stages passed through, but it 

 is possible to distinguish seven, or per- 

 haps eight. As the smallest must be in 

 stage II or III, the total number would 

 be eight or nine. Measurements of the 

 specimens are given in Table VII. The 

 specimen of 7-4 mm. is much more ad- 

 vanced in some respects than that of 

 8 mm. and may perhaps represent a 

 different species. 



As will be seen from Table VI, this 

 form was taken at 11 stations, from 

 11° 25' S, 42° 03' E (off Zanzibar) south- 

 wards to beyond the Cape in 38° 02' S 

 and i7°5o'E. All these specimens appear 

 to be of one species. In addition two 

 small specimens from St. 701 in the 

 Atlantic are included in the table and 

 shown in Fig. 24. They do not belong to 

 the same species, being of rather different 

 shape, and showing some differences in 

 the spines on the legs; but they cannot 

 be referred to either of the Atlantic 



Fig. 24. Panulirus D, 5 mm. St. 701. 



species of Panulirus described above. If they are, as they appear to be, closely allied to 

 the eastern form, that would be some evidence that this is a generic rather than a 

 specific type. 



Genus Jasus, Parker 



The first larva of the eastern form oi Jasus lalandii has been described by Thomson 

 (1907), Anderton (1907) and Archey (1916), and for the South African form by Gil- 

 christ (1913). In both cases the larva, when first hatched, has a very peculiar form. The 



