126 Mr. E. J. Miers on the Squillidae. 



It is right, however, to add (as I have already noted in the 

 Introduction to my Catalogue of the New-Zealand Crustacea) 

 that Dr. Giinther (P. Z.S. 1871, pp. 653, 673) mentions 

 several species of fishes common both to the British and 

 Antarctic seas ; and as our knowledge increases a parallel 

 distribution of the marine Crustacea may be ascertained. 



Squilla mantis. — In the text I have cited Latreille as the 

 earliest authority for this species, because the Cancer mantis 

 of Linnaeus (Syst. Nat. p. 1054, 1766) and Squilla mantis 

 of Fabricius (Eut. Syst. ii. p. 511, 1793) are described in 

 such general terms that their diagnoses might apply to almost 

 any species of the genus ; and, indeed, it is evident from the 

 synonymical references and habitats given by them (" in mare 

 Asiatico, Indico, Mediterraneo ") that they confounded several 

 distinct species under this name. 



EXPLANATION OF THE PLATES. 

 Plate I. 



Fig. 1. Dactylus of raptorial limb of male Lysiosquilla maculata. 



Fig. 2. Dactylus of the raptorial limb of a female. 



Fig. 3. Lysiosquilla Brazieri, Miers, adult female, nat. size. 



Fig. 4. Raptorial limb of the same. 



Fig. 5. Appendage of one of the penultimate thoracic limbs, magnified. 



Fig. 6. Appendage of one of the last pair of thoracic limbs, magnified. 



Fig. 7. Lysiosquilla acanthocarpus, Gray, female, nat. size. 



Fig. 8. Raptorial liinb of the same. 



Fig. 9. Terminal segment, magnified. 



Fig. 10. Lysiosquilla spinosa, Wood-Mason, nat. size. 



Fig. 11. Raptorial limb of the same, magnified. 



Fig. 12. Terminal segment and uropoda, magnified. The specimen 



figured is that to which Gray attached the name of Coronis 



tricarinata. 



Plate II. 



Fig. 1. Chloridella microphthalma, M.-Edwards, adult male, nat. size. 

 Fig. 2. Front of cephalic region of the same, showing the form of the 



eye-peduncles and of the rostral plate, magnified. 

 Fig. 3. Raptorial limb, magnified. 

 Fig. 4. Terminal segment and uropoda, magnified. 

 Fig. 5. Front of the cephalic region of Chloridella rotundicauda, sp. n. ( 



showing the form of the rostrum and eye-peduncles, magnified. 

 Fig. 6. Terminal segment and lu'opoda of the same, nat. size. 

 Fig. 7. Lateral process of the fourth thoracic segment in Squilla Scorpio, 



Latr. 

 Fig. 8. Squilla Dufresnii, Leach (ined.), adult male, nat. size. 

 Fig. 9. Lateral process of the fourth thoracic segment of the same, 



magnified. 

 Fig. 10. Lateral process of the fourth thoracic segment in Squilla prasino- 



lineata, Dana ? 

 Fig. 11. Lateral process of the same segment in S. mantis, L. 

 Fig. 12. Lateral process of the fourth thoracic segment in & empusa, 



Say. 

 Fig. 13. Lateral process of the same segment in Squilla nepa, Latreille. 



