136 Leiickart: Bericht üb d. Leist. in d Naturgeschichte 



Gen. n. C r a t er oJ cphv s Cl. Disk octohedral, campanuli- 

 form; arms produced; pedicel mouocamerous, the camera possessed 

 of ridges which form a cruciate figure at the base; tentacles in 

 groiips at the end of the arms ; anchors none ; genitals tubiforra 

 with blind - sacklike divisions; pedicel muskels correspond to the 

 four ridges of the camera. (Der Stiel ist nach den Untersuchungen 

 des Ref. ganz ohne Muskeln , wie denn auch die Geschlechtsor- 

 gane sich nicht von denen anderer Lucernarien unterscheiden.) 

 Cr. Tethys Cl. (= Lvicernaria inauriculata von Helgoland Ref.), 

 Cr. convolvulus Johnst. (?). 



Gen. n. Mananio Cl. Disk urnaeform octohedral: the arms 

 produced ; pedicel monocamerous ; the camera simple ; tentacles in 

 groups at the end of the arms, but a little within the muscular 

 margin of the bell ; outer or distal row pistilliform ; the radial dia- 

 meter of the groups greater than the transverse; marginal anchors 

 pistilliform , situated just within the muscular margin ; genitals 

 transversely folded, terminating at a greater or less distance from 

 the margin of the bell ; the digitiform bodies accompany the united 

 bands across the proximal end of the partitions ; muscles of the 

 pedicel four, equidistant, imbedded in the gelatiniform layer ; prin- 

 cipal muscles of the disk ligulate; from each side of the proximal 

 end of a partition one extends in a direct line to the end of the 

 nearcst arm; marginal muscle ligulate; powerfull, forming a ring 

 of uniform breadth and tickness, uninterrumptedly , all around the 

 margin of the bell, just outside the anchors and the tufs of tenta- 

 cles; gelatiniform layer variable in thickness in the bell, uniform 

 in the pedicel. M. auricula Fbr. Norwegen, Grönland. Maine. 



Gen. CardneVn Allm. Disk urnaeform, perfectly circular ; 

 arms none; pedicel tetracamerous ; tentacles placed in eight di- 

 stinct equidistant groups within the margin of the um , and ar- 

 ranged in rows parallel to the margin, those in one row alterna- 

 ting with those in the next and successively diminishing in size 

 from the central to the outermost ones ; the radial development less 

 than the transverse; between every radial row the oral and aboral 

 sides of the urn are united by a thin septum, so that the interior 

 of the tentacles communicates with the quadrant camerae of the 

 urn, through short radiating passages; the marginal anchors are 

 Single tentacles whose cavity opens between a pair of septa like 

 those of the base of the tentacles ; they are set up higher and 

 nearer to the edge of the urn than are the tentacles ; the approxi- 

 mated genital halves , with their respective claustra. extend half 

 way or more toward the edge of the urn. transversely plicate; the 

 digitiform bodies border the whole length of the Ijands; pedicel 

 muscles four, alternate with the camerae; principal muscles of the 



