Mr. E. J. Miers on the Squillidse. 3 



Carapace and postabdomen as in Lysiosquilla. 



Eye-peduncles ovoid, dilated in their 

 middle portion, and constricted at the 

 distal end ; cornea very small Chloridella. 



Carapace usually costate. Postabdomen 

 compactly articulated ; terminal seg- 

 ment with well-developed marginal 

 spines. Eye-peduncles dilated at the 

 distal end Squilla. 



Carapace not costate. Postabdomen con- 

 vex, compactly articulated, smooth ; 

 terminal segment with two well-deve- 

 loped mobile spines at its distal end. 

 Eye-peduncles subcylindrical, but little 



dilated at the distal end Pseudosquilla. 



2. Dactyli of the raptorial limbs dilated at 

 base. 



Carapace and postabdomen nearly as in 



PseudosquiUa Gonodactylus. 



The genera, it will be observed, are separated by characters 

 of little importance. The distinction between PseudosquiUa 

 and Oonodactylus is, indeed, an artificial one; and it might have 

 been better to have restricted the former genus to the Pseudo- 

 squiUa Lessonii, which is characterized by the great develop- 

 ment of the antennules and the form of the basal portion of the 

 uropoda ; in practice, however, it is more convenient to adhere 

 to the long-established diagnosis, based on the form of the 

 dactyli of the raptorial limbs, which affords a ready means of 

 separating the species, and from which the name Gonodactylus 

 derives its significance. 



List of the Genera and Species. 



Lysiosquilla. 



L. rnaculata (Fabr.). Indo-Pacific Region. 



L. glabriuscula (Lam.). West Indies. 



L. scabricauda (Lam.). Atlantic Region. 



L. Desaussurei (Stimps.). Pacific coast of North America. 



L. scolopendra (Latr.). Brazil ? 



L. eusebia (Pixso). Mediterranean. 



L. latifrons (De Ileum). Japan. 



L. Brazieri, Miers. Australia, Port Jackson. 



L. acanthocarpus ( White, ined.). Australia, Port Essington. 



L. spinosa (Wood-Mason). Andamans, New-Zealand Seas. 



Leptosquilla. 

 L. Schmeltzii (A. Milne-Edwards). Samoa Islands. 



Chloridella. 



C. microphthalmia (M. -Ed wards). Australian and Indian Seas. 



C. rotundicauda, Miers. Formosa. 



C. Latreillei (Eydoux and Souleyet). Singapore. 



C. decorata (Wood-Mason). Andamans. 



