1855.] 375 



with the furrows of the elytra less deep and less crenate was found by me 

 at Panama: in the only specimen left, the pygidium is entirely covered by 

 the elytra, as in other Cercyons. 



Cryptopleurum Muls. 



l.C.vagans brevius ovatutn, postice acutum, convexum, nigrum subniti- 

 dum, subtiliter flavo-pubescens, confertim punctulatum,elytris profunde striatis, 

 stviis punctatis, postice profundioribus interstitiis externis et versus apicem 

 convexioribus, elytrorum apine, palpis pedibusque testaceis. Long. '07. 



One specimen, Eagle Harbor, Lake Superior. 



Descriptions of some of the neiv Marine Inverlebrata from the Chinese and Japanese 

 Seas. By Wm. Stimpson, Zoologist to the V. S. Surveying Expedition to North 

 Pacific, Japan Seas, etc., Lt. John Rodgers, Commander. 



(Communicated by the Smithsonian Institution.) 



POLYPI. 



1. Anthelia lineata. Polypes elongated, slightly tapering towards the mouth, 

 pale brownish with eight longitudinal lead colored stripes ; tentacula bright blue, 

 half as long as the body, with a single series of oblong, somewhat irregular pa- 

 pillae. Length of a polype 1 inch. 



Hah. China. 



2. Cornularia aurantiaca. Large, branching, pale orange ; tubes straight, 

 subcylindrical, (clavate when young) ; polypes transparent, with a few short 

 linear spiculee on the sides ; stomach crimson ; tentacula with a single series of 

 elongated, tuberculated papillae. Height 2 inches. 



Hah. China. 



3. Alcyonium agaricum. Mushroom-shaped, upper surface only polypiferous ; 

 pedicel central, one-third as thick as the disc is broad; disc orbicular, convex, 

 margin entire, revolute; polypi rather large, three-tenths of an inch long and 

 one-eighth of an inch distant, the surface between them covered with minute 

 dots ; disc above bluish-grey, polypes lighter, with still paler tentacula ; inferior 

 surface and pedicel dark cream-colored. Diameter \ inch. 



Hah. Japan. 



4. Nephthya coccinea. Lobulose, deep crimson ; spicule crowded and irregu- 

 larly projecting around the bases of the polypes, which are hyaline, with trian- 

 gular, papillate tentacles. Beneath each tentaculum in the skin of the polype 

 are two rows of minute, linear, crimson spiculae, converging toward each other 

 and forming a succession o V-shaped markings. 



Hah. China. 



5. Veretillum clavatum. Variegated, punctate with orange and spotted with 

 brown ; foot white, with a pointed extremity ; polypes large, the tentacula long 

 and slender, their papillae oblong ; surface of the body between the polypes 

 irregularly papillose. Length 2 inches. 



Hah. China. 



6. Actinia radiata. Small, smooth, oblong, pale brown, found attached to 

 slender univalves ; when contracted, depressed, radiated with gradually widening 

 streaks of white ; when expanded, disc narrower than the base, spotted with 

 flake-white around the mouth ; tentacula spotted with dark brown and white, 

 tapering, pointed, arranged in an alternating series near the margin. Length \ 

 inch. 



Hah. Japan. 



7. Actinia nigropunctata. Subcylindrical, smooth, pale orange, base some- 

 what expanded ; body encircled by two lines of distant black punctae, ten in each 

 line, alternating with the others ; tentacula rather numerous, long, pointed, dark 



