2 94 MALDANID^E. 



Levinsen (1883) grouped the Maldanidaa along with the Capitellidse under his 

 Maldaniformia, an association, perhaps, that is open to criticism, for there is comparatively 

 little in common between them. The order in which he places the genera is : Bhocline, 

 Lumbriolymene, Nicomache, Nicomachella, Glymene, and Maldane. 



The Maldanida3 were included by Benham (1896) under the Scoleciformia, the fifth 

 sub-order of the Nereidiformia, along with the Opheliidas, Arenicolida3, Scalibregmidse, 

 Chlorasmidae, and Stenaspidae — a varied series. 



Neural canals occur in Nicomache maculata and in " Arciothea catenata " according to 

 Cunningham (1888). 



In 1894 De St. Joseph gave a classification of the Maldanidse founded on the 

 external structure of the head and anal funnel, together with that of the bristles and 

 hooks. 



1. Head with cephalic plate more or less smooth, more or less inclined in rear, and 

 surrounded by a thickened margin or not. Uncinigerous segments with a transverse 

 row of crotchets with sub-rostral barbules. 



a. Anal segment having a ciliated funnel with cirri on the edge, the anus being in 

 the centre. 



a. Ventral capillary bristles replaced by crotchets in a certain number of the anterior 

 segments. 



a 1 . External vascular cseca in parallel rows in most of the posterior segments. 

 Johnstonia, De Quatrefages. 



a 2 . No external vascular coeca. Glymene, Savigny (including Praxillella 1 = Pr axilla, 

 Malmgren, and Neco, Kinberg). 



b. Ventral hooks (crotchets) in all the setigerous segments. Axiothea, Malmgren 

 (including Glymenella, Verrill). 



c. No ventral bristles (aciculaires) or crotchets in the first segment. Maldanella, 

 Mcintosh. 



b. Anal segment forming a smooth plate without cirri, the anus being under the 

 plate. No acicular bristles or crotchets in the first setigerous segment. Maldane, Grube, 

 Malmgren, char, emend. 



0. Anal segment two-ringed, cleft laterally, without plate or funnel; anus dorsal. 

 Chrysothemis, Kinberg (including Sabaco, Kinberg). 



2. Head without a bordered plate. 



a. Ventral hooks (crotchets) without sub-rostral barbels and with two transverse 

 parallel rows of hooks in a certain number of the segments. 



Anal segment without plate or funnel, and with the anus sub-dorsal. Devoid of 

 hooks or capillary bristles in a certain number of the anterior segments. BJiodine, 

 Malmgren, Ehlers, char, emend. 



b. A simple row of ventral hooks with sub-rostral barbels in the uncinigerous segments. 



1. Capillary bristles in a certain number of the anterior segments. 



a. Anal segment with a ciliated funnel and the anus in the centre. Nicomache, 

 Malmgren (Leiocejohalus, De Quatrefages). 



i This name was proposed by Verrill in 1882, as Praxilla had been used by Reichenbach in 1853, 

 for a genus of birds. c Trans. Conn. Acad./ vol. iv, p. 298. 



