Prof. Grube on the Annelid Family Maldaniea. 397 



L. coronatuSj Quatref. and CI. intermedia^ QErst., and add 

 Sabella lumbricalisj Fab., it would seem desirable to accept 

 this genus, which might be united with Nicomxiche^ Malmgr., 

 if we do not adhere to the number of twenty-two setigerous 

 segments assumed by Malmgren in the generic character. 

 CI. intermedia must have fewer ; L. coronatus has only thirteen. 

 Of CI. ehiensisj which is perhaps identical with CI. intermedia^ 

 and of Leiocephalus parvus^ Quatref., the posterior extremity 

 is unknown : they cannot, therefore, any more than the above- 

 mentioned CI. spathulata^ be numbered among the Leiocephali. 

 Near Clymene we should also have to place the genus 

 Johnstonia^ Quatref., some of the setigerous segments of 

 which are furnished with richly sanguiferous caeca on the sur- 

 face. In the only known species, J. clymenoides^ Quatref., 

 the last six setigerous segments are thus distinguished. 



h. In two species of Clymene only do we find the 

 terminal funnel smooth-edged and destitute of teeth, 

 namely, in CI. urceolata^ Leidy, and CI. leiopygosj Gr. 



These might form a particular group [Leiochone) ; but 

 they require that their examination should be repeated ; it 

 is a question especially whether the examined specimen of 

 the latter has not a mutilated posterior extremity, as, con- 

 trary to its condition elsewhere, uncini and setae exist even 

 on the penultimate segment — and also whether the described 

 anterior extremity, which is torn away behind, really belongs 

 to this posterior extremity. In this case CI. urceolata would 

 be distinguished by the well-developed projecting margin of 

 the vertical plate, which does not exist in Cl. leiopygos. 



2. The terminal segment does not form a funnel, and the 

 anus is situated on the dorsal surface. 



In this section the genera Chrysothemis and SahacOj Kinb., 

 Maldane, Gr., and Petaloproctus, Quatref., should stand. In 

 the first two the terminal segment, according to Kinberg, is 

 not merely biannulate, but also divided into two parts in a lon- 

 gitudinal direction by two lateral furrows, and is cut off short 

 beneath and produced above ; the setae are in part narrowly, 

 and in part broadly margined, and in part furnished with 

 denticulated margins ; the uncini are stronger on segments 

 2-4, but already form small combs, which are broader further 

 on ; they persist on the penultimate segment. I cannot detect 

 essentially distinguishing generic characters between these two 

 genera in the description. Each of them is represented only 

 by a single species, and that an exotic one — C. amcenaj Kinb., 

 and S. maculatiiSj Kinb. In Maldane smd Petaloproctus the 



