78 
THE VOYAGE OF H.M.S. CHALLENGER. 
The basal enlargement on the dactyle of the raptorial claw is not notched, its outer 
border is truncated, and at its distal edge the transition is abrupt to the long slender 
gently curved acute tooth, which is barbed with minute serrations on its inner edge, 
while the outer edge of the second joint is finely dentate, with acute teeth. 
The eyes are subcylindrical, with the coronal portion a little wider than the basis. 
No secondary differences between the sexes, except in the first abdominal somite. 
Habitat. — The Challenger collection contains a single female specimen from 
Honolulu. The only other known specimen is a male from Matuku, Fiji Islands, 
described by White and also by Miers. 
Colour. — White describes his dry specimen as “marbled,” of a light yellowish- 
brown colour, varied with a darker colour. The Challenger specimen, preserved in 
alcohol, has a broad transverse light band across the carapace, while the rest of the 
dorsal surface is marked with brown pigment. 
Length, 1 /^ths inches. 
7. Protosquilla excavata (Miers). 
Gonodactylus excavatus, Miers, E. J., On the SquillidEe, Ann. and Mag. Nat. Hist., ser. 5, 
vol. v. p. 123, pi. iii. figs. 11, 12. 
Diagnosis. — Antero-lateral angles of carapace subacute, antero-lateral angles of 
rostrum acute, slender, shorter than elongated median spine. Fifth abdominal somite 
smooth. Sixth with six irregular longitudinal prominences, separated by deep inter- 
spaces, and confluent distally. Telson deeply excavated posteriorly, and with five 
prominent smooth longitudinal obtuse keels, the submedians longest and reaching to 
the postero-lateral lobe. First antennae very long. 
Length, fth inch. 
Locality. — Miers describes this species from a single male specimen of unknown 
origin. 
Remarks. — The published description does not state that the sixth abdominal 
somite is fused with the telson. 
8. (?) Protosquilla furcicaudcita (Miers). 
Gonodactylus furcicaudatus, Miers, E. J., On the SquillidEe, Ann. and Mag. Nat. Hist., ser. 5, 
vol. v., 1880, p. 124, pi. iii. figs. 13-16. 
Although Miers does not state whether the sixth abdominal somite of this species 
is fused with the telson, it exhibits so many features of resemblance to the Protosquillx 
that I place it here provisionally. It may be briefly described as follows. Eyes, 
antennae, rostrum, carapace, exposed thoracic somites, and first five abdominal somites as 
