52 Dr. G. C, Wallich on some novel Phases of Organic Life 



6. O. lacteo-strigata, n. sp. 



O. curta, tomento holosericeo rufo-brunneo vestita : elytris apicem 

 versus attenuatis, pone medium fascia pallidiore strigis lacteis un- 

 dulatis marginata, prope apicem linea transversa undulata lactea 

 ornatis. Long. 6 lin. c? . 



Head brown : eyes rather distant from the central line on 

 the vertex. Antennae pitchy-brown, base of joints paler greyish. 

 Thorax punctured on the disk as well as along the fore and hind 

 margins: the anterior pair of tubercles prominent, conical, 

 dusky ; the posterior one slightly elevated ; the lateral ones coni- 

 cal. Elytra rather thickly punctured from the base to three- 

 fourths the length, punctures large, the basal ones accompanied 

 by granulations, each near the base furnished with a longitudi- 

 nal ridge-shaped tubercle, slightly hooked behind; the basal 

 half is deep red-brown, deepening on the sides to violet-black ; 

 the space between the pale-brown median belt and the sub- 

 apical transverse undulated line is lighter brown, streaked longi- 

 tudinally with dark brown ; the subapical milky belt emits short 

 branches, and is edged posteriorly with dark brown ; extreme 

 apex light brown : the apex is obliquely truncated ; the external 

 angles of the truncature acute, but not produced. Legs and 

 under-surface of the body clothed with silky-brown grey pile. 



This species was rare on the Upper Amazons. In facies it 

 resembles species of the genus Alcidion (group Acanthocinitae) ; 

 it is readily distinguished, however, by the short clavate basal 

 joint of the antennae. 



[To be continued.] 



V. — Remarks on some novel Phases of Organic Life, and on the 

 Boring Powers of minute Annelids, at great Depths in the Sea. 

 By G. C. Wallich, M.D., F.L.S. & F.G.S. 



In the notice of the material obtained by the soundings taken 

 on board II.M.S. 'Cyclops' in 1857, appended to the official 

 report of Captain Dayman*, Professor Huxley mentions having 

 met with a number of small rounded bodies, which he describes 

 as consisting of several concentric layers surrounding a minute 

 clear centre, and looking, at first sight, somewhat like single 

 cells of the plant " Protococcus." To these bodies Professor 

 Huxley provisionally applied the designation of Coccoliths. 

 In the deepest soundings taken during the recent expedition 



* " Deep-Sea Soundings in the North Atlantic Ocean, between Ireland 

 and Newfoundland, made in H.M.S. Cyclops, Lieutenant-Commander 

 Joseph Dayman, in June and July 1857, published by order of the Admi- 

 raltv." 



