146 DR. C. CHILTON ON THE 



Habitat. — Takapuna, Auckland (L. Hames) ; Auckland (Heller), Bay of Islands (Dana). 

 Filhol says that he has found this species in great abundance in the North Island, 

 and that it becomes less and less abundant towards the south, tliough he gathered a 

 few examples of it on Stewart Island. The statement as to the greater abundance in 

 the north is also true of Armadillo inconspicims, which this species closely resembles, 

 and there is nothing to show definitely that Filhol distinguished the one from the other. 



I have a single specimen of this species before me from Takapuna, Auckland, and 

 have no difficulty whatever in identifying it with A. inconspicuus, Miers. It also agrees 

 very well with Heller's description, if we remember that the part he speaks of as the 

 outer branch of the uropoda is the outer distal portion of the base, and that his " inner 

 branch " is really the outer, though, as usual in this genus, arising from the inner 

 margin of the produced portion of the base. 



In colour and general appearance this species is very like A. ambit iosiis, Budde- 

 Lund, but it may be readily distinguished from that species by the groove on the 

 lower margin of the fii'st segment of the mesosome, and by the minute outer branch 

 of the uropoda. 



3. Armadillo speciosus, Dana. (PL 16. fig. 6.) 



Armadillo speciosus, Dana, U. S. Explor. Exped., Crust, ii. p. 718, pi. 47. fig. 2 (1853). 

 Armadillo speciosus, Miers, Cat. N. Z. Crust, p. 95 (1876). 

 Armadillo speciosus, Budde-Luud, Isopoda Terrestria, p. 39 (1885). 

 Armadiilo speciosus, Filhol, Mission de I'ile Campbell, p. 439 (1885). 



Specific description. — Body very convex. Ce])halon with frontal margin raised, a 

 little interrupted in the centre. Segments of mesosome each with transverse row of 

 indistinct tubercles or granules ; inferior margin of first segment simple, curving a little 

 outwards. Segments of metasome in close contact, the last nearly as broad at apex as 

 at the base; sides concave, posterior margin straight. Uropoda with the outer joint 

 minute, rudimentary, inner branch slender, extending to the end of last segment. 



Colour light reddish brown, with darker markings. 



Length about 6 mm. 



Habitat. — Bay of Islands {Dana)\ Chatham Islands {Hutton). 



Remarks.- — I have three or four specimens (mostly imperfect) from Cliatham Islands 

 that I have little hesitation in assigning to Dana's species. He describes his genus 

 Armadillo as having the external ramus of the uropods obsolete, and figures his species 

 A- speciosus in accordance witii this view. It is true that in the specimens before me 

 the outer branch is present, but it is so minute that it would be impossible to show it in 

 a figure the same size as that which Dana gives of the whole animal, and it would 

 be diflicult to see it with the magnifying power likely to be used for making such 

 a drawing, while in the view of the uropoda from beneath, which is the one shown in 

 Dana's enlarged figure, it is quite concealed. In other respects it agrees so well with 

 Dana's descrijjtion and figure that I identify it without much hesitation with his 

 species. 



It can be readily distinguished from A. dance. Heller, which it otherwise greatly 

 resembles, by the absence of a groove on the inferior margin of the first segment of the 



