Mr. E. J. Miers on the Squillidee. 121 



Gonodactylus Guerinii. 



Gonodactylus Guerinii, White, Proc. Zool. Soc. p. 43, pi. vii. (1861) ; 

 Ann. & Mag. Nat. Hist. vii. p. 479 (1861). 



This species is perhaps the most remarkable among the 

 Gonodactyli) on account of the armature of the penultimate 

 and terminal postabclominal segments. In most of its cha- 

 racters, however, it nearly resembles G. chiragra and G. 

 graphurus. The antero-lateral lobes of the rostrum are not, 

 as in those species, rounded, but produced into long spines, 

 which nearly equal in length the median rostral spine. The 

 fifth postabclominal segment is smooth at base and armed in 

 its posterior half with about six transverse rows of numerous 

 short spines, which increase in length as they approach the 

 posterior margin of the segment ; sixth segment armed with 

 numerous (about fifty) strong spines, each somewhat blunt 

 and tipped with a short bristle ; these spines are smaller and 

 more crowded towards the lateral margins of the segment ; 

 terminal segment armed on its upper surface with twenty-two 

 long outstanding spines, and toward the lateral margins with 

 two series of numerous closely-placed similar but shorter 

 spines, all tipped with a bristle; these series converge along 

 the outer margin and meet at the extremity of the two outer 

 long spines of the four which arm the posterior margin of the 

 terminal segment ; these spines are of equal length, and the 

 two inner, like the outer, are armed along their margins with 

 smaller spines pectinately disposed. The styliform portion 

 of the dactylus of the raptorial limbs is very long and slender ; 

 its inner margin is not armed with teeth or spines, but is very 

 minutely pectinated. The outer of the spines of the basal pro- 

 longation of the uropoda is larger than the inner, but is not 

 toothed on its inner margin. Length of the unique specimen 

 (a female) 2| inches. 



Hah. Fiji Islands, Matuka {H.M.S. 'Herald'). 



The carapace is marbled as in most of the species of the 

 genus. In its dry condition it is of a light yellowish brown 

 varied with darker colour. 



Gonodactylus trisjnnosus. (PI. III. fig. 10.) 



Gonodactylus trispinosus, White, List Crust. Brit. Mug. p. 85 (1847) ; 

 Dana, U.S. Explor. Exped. xiii. Or. i. p. 623 (1852) ; Heller, Reiae 

 der Novara, Crust, p. 126 (1865) ; Miers, Cat. New-Zeal. Crust, 

 p. 90 (1876). 



The antero-lateral angles of the rostrum are produced into 

 spines, which are nearly as long as the median spine. The 

 fifth postabdonninal segment is longitudinally corrugated ; the 



