134 Trai/sarfioNs. 



Art. XVIII. — Revision of the New Zealand Stomatopoda. 



By Charles Chilton. M.A., M.B., D.Sc, F.L.S., Professor of Biology, 

 Canterbury College, University of New Zealand. 



[Read before the Philosophical Institute of Canterhury, 7th December, 1910.] 



In the year 1891 I published a paper on the New Zealand Squillidae, stating 

 what was known of the group at that time. Only two species were then 

 known with certainty to occur in New Zealand — viz., Squilla armata. Milne- 

 Edwards and Lysiosquilla spinosa (Wood-Mason) ; but two other species — 

 Squilla nepa Latreille and ProtosquiUa trispinosa (White) — had been re- 

 corded from New Zealand, though they were not represented in any of the 

 local collections. 



A few years later an important paper was published by R. P. Bigelow 

 on the Stomatopoda collected by the " Albatross " between 1885 and 1891, 

 and this paper incidentally contains a considerable amount of additional 

 information on the New Zealand forms. Further references to some of 

 them have also been made by A. Milne-Edwards in the " Mission du Cap 

 Horn" and by Stebbing in his report on the South African Cnistacea. 

 Owing to the habits of these Crustacea they are not very frequently met with, 

 but during the years since the publication of my paper some additional 

 specimens have been collected, and in working out some from the '" Nora 

 Niven " collection I have been led to revise the few species that are known 

 to occur in New Zealand and to present the resiilts in this paper. "In it I 

 record one species, Lysiosquilla hrazieri, which had not been previously 

 laiown from New Zealand seas. I have also a specimen which is un- 

 doubtedly the same as those referred to Squilla nepa by Heller, but now 

 known under the name of Squilla affinis Berthold. so that this species, 

 which was previously considered doubtful, does occur in New Zealand : 

 further, I am able to give some additional information on Squilla armata. 



As regards their distribution, it may be noted that the four species that 

 are certainly known to occur in New Zealand are all widely distributed, 

 none of them being confined to the New Zealand region. Squilla armata 

 extends around the globe in southern seas, S. affinis reaches to Hong 

 Kong and Japan, Lysiosquilla spinosa is found in the Indian Ocean, and 

 L. hrazieri occurs in Australia, and is probably identical with L. latifrons 

 from Japan. 



For their kindness in supplying me with specimens I have to thank 

 Mr. A. Hamilton, of the Dominion Museum ; Mr. F. W. Hesse, of the 

 Wanganui Public Museum ; Mr. Edgar R. Waite, of the Canterbury 

 Museum : and Professor W. B. Benham. of the Otago Museum. 



I have given only those references which appeared necessary for New 

 Zealand students, and I have added brief diagnoses of the genera and species 

 where this seemed desirable. 



ProtosquiUa trispinosa (White). 



Gondaclylus trispinosus White, List Crust. Brit. Mus., p. 87, 18-17 : Mieis. 

 Cat. N.Z. Crust., p. 90, 1876. ProtosquiUa trispinosa Chilton, Trans. 

 N.Z. Inst., vol. 23. p. 61. 



This species has been recorded by Heller from Auckland. It is widely 

 distributed in Austi'alian and Indo-Pacific seas, but, so far as I am aware. 



