KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 63. N:0 7. 23 



they decrease in width backwards as usual. The one börder — narrow almost always — 

 is strongest on the 2 nd — 4 th setigerous segments, where it may be as wide as the other, 

 generally wider börder. The latter may attain its greatest width even on the l st seti- 

 gerous segment and is always most strongly developed on the 2 nd — 4 th — 5 th , hereafter 

 distinctly decreasing backwards, afc least in the majority of setae. 



Size. The anterior part, up to and including the 18 th setigerous segment, of a 

 large, rather contracted specimen measures 120 mm. with a maximum width of 3*2 mm. 



T u b e s. As far as is shown by the f ew pieces in the collection, the tubes are f irmly 

 built of fine material, mainly grains of sand. A large tube has the following dimensions: 

 outer diameter 4 mm., inner diameter 2*5 mm. 



Notices of finds. S. Devonshire: Salcombe, sandy beach (opposite Marine 

 Hotel), Potts, Sept. 1908. 6 spec., 4 of which are complete (24 setigerous segments), 

 Do., sandy shore, at least 11 spec., 2 of which are complete (24 and 25 setigerous seg- 

 ments respectively). — Salstone, 1 posterior end. Mar. Biol. Ass., n / 9 1900. 



Regeneration. All the complete specimens have the posterior part regenerated, 

 from the 12 th , 15 th , 16 th , 16 th , 19 th , 20 th and 22 nd setigerous segment respectively; the 

 last but one specimen the anterior part too from the l st setigerous segment. 6 loose 

 posterior ends have the posterior part, comprising 4, 3, 3, 3, 3, and 2 setigerous seg- 

 ments respectively, regenerated. 



Euclymeniiii. 



Fauvel (33, p. 463) has expressed himself in favour of retaining the genus Cly- 

 mene Savigny instead of Euclymene Verrill, in which latter genus Verrill also placed 

 Praxillella Verr. as another sub-genus by the side of the sub-genus Euclymene Verr. 

 Låter on I raised the two sub-genera to generic rank. It is true, that the genus Clymene 

 Sav. has acquired a certain tradition within the family Maldanidae, but I still think it 

 highly desirable to have this name definitely cancelled as it will always denote something 

 vague, which is not surprising indeed, this genus having been for so long time a veritable 

 lumber-room for the most different, often badly described species. As moreover the name 

 Clymene has been used already by Oken 1815 in quite another sense, there can be no 

 question that Clymene Sav. ought to be abolished as preoccupied. In its place we have 

 then to adopt Euclymene Verrill and by its side a number of other genera, such as Mi- 

 croclymene Arwtdsson, Praxillella Verrill 1 , Axiothella (Verrill), Clymenella Verrill, 

 Caesicirrus Arwtdsson, Heteroclymene Arwldsson and Pseudoclymene Arwtdsson. 



1 Chamberlin (34, p. 410) replaces Praxillella Verr. by Iphianissa Kinberg, without there being sufficient 

 certainty (ef. 24, p. 177) that these genera are really identical. 



Further Axiothella and Clymenella are included by Chamberlin in Paraxiothea Webster (1879), which in 

 my opinion ought not to be accepted either. The genus Clymenella was proposed by Verrill 1873; with this genus 

 Paraxiothea coincides af ter its proper restoration (ef. 24, p. 208), the latter genus manifestly having been established 

 on CZt/meneZJa-specimens with abnormal anterior ends. Paraxiothea must thus have disappeared immediately and 

 cannot be resuscitated for the genus Axiothella (= Axiothea Malmgren), which had earlier belonged to Clymenella 

 as a sub-genus. For further details see 24, p. 205 etc. 



