80 
THE VOYAGE OF H.M.S. CHALLENGED 
minutely spinulose on its posterior margin, a characteristic which is exactly duplicated in 
Pi'otosquilla guerinii. 
The two species differ from Protosquilla in the absence of antero-lateral spines on the 
armed with spines on its inner edge. Rostrum ending in a small median spine. 
thickly set with small spines. Carapace flat and nearly rectangular. 
Coronidct bradyi (A. Milne-Edwards). 
Gonodactylus bradyi , A. Milne-Edwards, Fonds de la Mer, vol. ix., 1869, p. 137, pi. xvii. fig. 
'll ; Miers, E. J., On the Squillidse, Ann. and Mag. Nat. Hist., ser. 5, vol. v., 1880, p. 117. 
Gonodactylus bradyi , Miers, E. J., Crustacea from Mauritius, Proc. Zool. Soc. Lond., January 
5, 1884, p. 16. 
Ccronida trachura. 
Gonodactylus trachurus, Miers, E. J., Crustacea from Mauritius, Proc. Zool. Soc. Lond., 
January 5, 1884, p. 16. 
rostrum, and the enlargement of the tips of the eyes, and from both Protosquilla and 
Gonodactylus in the presence of spines on the inner edge of the dactyle of the raptorial 
claw, and the depression of the hind body ; resembling both Squilla and Lysiosquilla in 
these features. 
The relationships of Coronida are therefore expressed in the accompanying diagram. 
Lysiosquilla. 
Squilla. 
/ 
Coronis. 
Chlorida. 
Coronida. Gonodactylus. 
Protosquilla. 
Diagnosis. — Hind body depressed, dactylus of raptorial claw dilated at base, and 
Antennary scales and uropods very small. Terminal segments of hind body and telson 
