27 



But in the latter species, only the lirst tour scales have the large 

 tubercles which are visible under a lens, whereas, in Lcpidonotus 

 Wahlbcrgi, every scale has them. Yet this is not an impassible 

 barrier to their union — it in Lcpidonotus Wahlbcrgi prominent 

 and acute spines had not been present on several of the anterior 

 scales. The tips of these spines are slightly bent, and are 

 minutely nodular, so that the surface in some views presents a 

 slightly areolar or scaled appearance. On the other hand, the 

 truncated capstan-like tubercle, characteristic of the lirst scale of 

 Lcpidonotus chiva, has the head minutely and somewhat regularly 

 nodular, the tip of each process having a spine. When viewed 

 from above, the rim of the head is thus minutely hispid. The 

 arrangement and structure of the other papilla.% on the re- 

 spective scales, also differ. Further, the dorsal bristles of 

 Lcpidonotus Wahlbcrgi have a stouter tip, with a definite curve, 

 and is much less elongated and tapered than in Lcpidonotus 

 clava. The ventral bristles, again, have a more elongated tip, 

 with a longer row of spinous ridges. From point to point, 

 therefore, the European and the African forms differ, even the 

 scales in the latter being distinctly smaller. 



Yet it cannot be doubted that a close approach, in many 

 respects, occurs between the two forms — separated by so many 

 thousand miles, and in view of the conditions found in other 

 South African Annelids, it may be that the differences pointed 

 out in the foregoing paragraph, will suffice only to constitute a 

 local variety. Chitinous structures of the nature of spmes on 

 scales, of bristles and the parts of the dental apparatus, are 

 prone to vary, and intermediate forms of Lcpidonotus clara may 

 yet be obtained, which would warrant the union of this form 

 with Lcpidonotus Wahlbcrgi. 



ErPHioXE ELiSABETH.^i, McIntosh, 1885. 



iHH^,. Euphionc Elisabcthcv, Mcintosh, Ann, "Challenger," 

 p. 62, PL ix., fig, 3, PI. xvii., lig. 7, PI. xviii., lig, 10, and PI. 

 viii. A., figs. 3 — 6, 



This striking foim was procured by the dredge south of the 

 Cape of Good Hope, in 150 fathoms, on a bottom of green sand. 

 It is about 35 mm, in length, and its breadth at the widest 

 part (including the bristles) is 23 mm. The chief features 

 are the correspondence of the head with that in Lcpidonotus, 

 only the eyes are almost connate on each side. The smooth 

 tentacula and dorsal cirri have an enlargement at the tip, and a 

 constriction beneath it. Scales — 13 pairs, as in Iphiouc, flexible, 

 leathery, the first being rounded, the rest somewhat rhomboidal, 

 the anterior edge, however, being incurved, the posterior 



