40 Mr. D. Sharp on the Dascillidee of New Zealand. 



Fig. 3. The same, and same specimen, lateral view of yertical section, 

 natural size, to show : — a a, excretory canal-systems and vents ; 

 h b, pedal points of attachment rounded off by attrition. Dia- 

 gram. 



Fig. 4. The same, large triradiate spicule of general structure : a, small 

 triradiate ; b, small quadriradiate spicule ; c, curved or fourth 

 arm. 



Fig. 5. The same, large quadriradiate spicule of surface : a, horizontal or 

 curved arms ; b, vertical arm or shaft. 



Fig. 6. Teichonella labgrinthica, n. sp., lateral view, natural size : a a a, 

 lamina ; b, pore-side ; c, vent-side ; d, pedal point of attachment 

 rounded off by attrition. 



Fig. 7. The same, upper view, to show the interfoliation of the lamina. 



Fig. 8. The same, to show: — a, pore-side; b, portion excised to show 

 vents and internal structure of lamina ; c c, vent-side ; d d, ver- 

 tical sections of lamina, to show cylindrical structure. Dia- 

 gram. 



Fig. 9. The same, portion of internal or cylindrical structure, much 

 magnified, to show : — a, pore-margin ; b, vent-margin ; c, cylin- 

 drical canals with curved arms of triradiate spicules projecting 

 into them. 



Fig. 10, The same, triradiate spicule: a, long and straight arm form- 

 ing, by aggregation, the walls of the cylinders respectively ; b b, 

 shorter curved arms projecting info the cylinders. 



Fig. 11. The same, linear spicule, relatively magnified : d, the same, 

 much more magnified, to show the form. 

 N.B. — The spicules of both species are relatively magnified and on the 



same scale. 



VI. — On the DasclllidEe of New Zealand. By D. Sharp, 

 Honorary Member of the New-Zealand Institute. 



In this paper I have attempted to present a little knowledge 

 about the species from New Zealand of one of the unattractive, 

 and therefore comparatively little-known, families of Coleo- 

 ptera. I have drawn up in a brief manner characteristics of 

 twenty-eight species, all of them up to the present time un- 

 known to naturalists ; and I have, moreover, made a tolerably 

 careful study of their structure, so as to offer what I hope 

 will prove to be a successful introduction to their classification. 

 I have arranged them in eight groups, or genera, for six of 

 which I have coined new names, viz. Byrrhodes, Cyprohius^ 

 Cyphanus, Veronatus, Mesocyphon, and Cyphotelus ; for the 

 species of the two other groups I have used names already 

 known to naturalists, viz. Cyphon for a dozen of obscure 

 species which I cannot find to differ in their structure from 

 numerous similar species inhabiting Europe and North Ame- 

 rica, and Atopida, which was applied by Adam White to 

 the only species of the family which has, previous to this 

 paper, been made known ft-om New Zealand. As regards 



