2C)4 DE. A. WILLEY ON LITTORAL POLTCH^TA 



1900, p. 270, pi. xi. figs. 91-92), and my own inclination is to adliere to the trinomial 

 system by the designation Marphysa adenensis Ftircellana. 



It differs from If. adenensis in that the prostomium is broader than long and its frontal 

 border is emarginate ; the median antenna is the shortest, shorter than the prostomium. 



The branchiae are pinnate and the compound setae falcigerous, these being the 

 principal characters which relate it to M. adenensis. 



The pinnate brauchise occur on segments 10-30. The feet are low. There are 

 136 segments (in the specimens examined), followed by an apparently regenerated 

 tail-end of about 10 segments, terminated by two slender anal cirri, at the base of which 

 are two quite short cirri. The total length is about 95 mm., and the width in the 

 branchial region 5 mm. 



This species, in common with 31. adenensis, differs from 31. Belli in the form of the 

 sette and branchiae, but resembles it in a striking manner in the localization of the 

 branchiae *. 



I have much pleasure in dedicating this species to Mr. W. F. Purcell, by whom 

 it was collected. 



19. Lysidice capensis, Grube. (Plate 13. fig. 18 ) 



Lysidice capensis, Grube, 1867, ' Novara ' Exped., Aiinel. p. 12, Ta£. i. fig. 4. 



Pive examples of this species were taken between tide-marks at St. James, False Bay. 



20. Maclovia iricolor capensis. (Plate 13. figs. 19 & 20.) 



One specimen taken among roots of sea-bamboo off Woodstock beach, Table Bay. 

 It consists of 215 segments, incomplete behind, 102 mm. long, 3 mm. wide. The dorsal 

 cirrEe are evanescent, but the setae which enter them are present. It can hardly be 

 separated specifically from 31. iricolor (Montagu) f, differing only in size, so far as I can 

 ascertain from the alcoholic material. Another specimen comes from St. James, 

 False Bay. 



21. LuMBRicoNEREis cccciNEA, Rcnier. (Plate 13. fig. 21 and Plate 14. fig. 13.) 

 See Ehlers, Borstenwiirmer, 1868, p. 389. 



A tube contained 28 Lumbriconereids from St. James, False Bay. Most of them 

 appeared to belong to this species, which is characterized by the breadth of the anterior 

 end, and especially by the subglobular prostomium. Compound falciform setee (in the. 

 specimen examined) occurred in the first 13 setigerous segments, simple hamate 

 setse thereafter. Simple limbate capillary setae occurred in the first 28 setigers, and on 

 one side I found them again cropping up in segments 41, 42, and 43. This shows (what 

 I have often observed before) that the distribution of the various forms of setse in 

 the Lumbriconereidae is subject to considerable variation. 



A specimen of 70 mm. had 100 setigerous segments. 



* Compare also Eunice strarfxilum, Grube (Philippine Annelida, 1878, p. 1013). 



t Cf. Willey, A., " On Maclovia iricolor (Montagu)," J. Mar. Eiol. Assoc, (n. s) vi. pp. 98-100. 



