312 Miscellaneous. 



base they extend outwards, only very slightly, however ; 

 between the base and the middle there is a moderate sinuation ; 

 the posterior angles are rectangular ; the dorsal groove almost 

 reaches the apex and is quite distinct behind ; the basal fosses 

 are very large, but become shallow near the central groove ; 

 the punctuation near the base is feeble, the plica near each 

 side is well marked. Elytra oval, much broader than the 

 thorax, the lateral margins and channels broad ; their striaa, 

 though distinct, are not deep nor broad, and they are only 

 very finely punctured ; the fifth is bordered behind by 

 distinct carina? ; interstices broad, not convex, the third tri- 

 punctate ; at each side near the shoulder there are three or 

 four setigerous punctures, there are similar ones behind. 



There are two setigerous punctures on the forehead and one 

 near the back part of each eye. The antennce barely attain 

 the middle thighs 5 their second joint is as long as the first, it 

 is nearly glabrous ; the third is nearly bare at the base. The 

 front tarsi are narrow ; their basal joint is shorter than the 

 terminal one, the second is longer than broad ; the third and 

 fourth are cordiform, the latter is shorter than the former. 



The nearest species is Z. carinatus (No. 1339). This is a 

 little narrower, with a shorter thorax ; its sides are more 

 rounded at and before the middle and more sinuated behind ; 

 the basal impressions are larger, but the- punctures there are 

 much finer and less numerous \ the last puncture on the Jhird 

 interstice is situated behind the posterior femur, in No. 1339 

 it is placed in line with the front of the thigh ; the scutellar 

 striolas are represented by series of fine punctures ; the apices 

 of the elytra are more broadly rounded ; the hind tarsi are 

 feebly grooved above. 



$ . Length 3f , breadth If lines. 



Wellington. I received my specimen from Mr. J. H. 

 Lewis ; he found it on the 2nd September, 1893. 



[To be continued.] 



MISCELLANEOUS. 



A new instance of Commensctlism : Association of Worms of the 

 Genus Aspidosiphon with Madreporarian Polyps and a Bivalve 

 Mollush. By M. E.-L. Botjvier. 



In their ' Monographie des Turbinolides,' published in 1848, Milne- 

 Edwards and Jules Haime mentioned tbe association of Gastropod 

 mollusks with Madreporarian polyps, which they subsequently 

 assigned (' Histoire naturelle des Coralliaires,' t. ii. p. 51, 1857, and 



