Gatly Marine Laboratory, St. Andrews, 301 



is covered with dark pigment except a narro\y strip in the 

 fourth segment. Anterior part of proveutriculus long and 

 narrow, with twenty rows of ghmds^ the succeeding portion 

 beii.g muscular and non-glandular, with two small ciliated 

 sacs. The proboscis has ten soft papilhe anteriorly and a 

 conical tooth. Colour grey or flesh-colour, eyes dark red or 

 black. The foot has an unequally bilol)ed setigerous 

 process, the dorsal portions with the spine being the smaller 

 and having a rouiuled papilla near the tip. Dorsal cirrus 

 small and bulbous with stiff cilia distally. Bristles in a fan- 

 shaped series : shafts curved, swollen and bevelled at the 

 tip ; terminal pieces coarsely spinous proximally, and some 

 distance below the tip is a broad tooth. A single spine is 

 present, its tip being enlarged and smooth. A simple dorsal 

 bristle appears in the seventh foot, and is joined in the 

 posterior seven segments by a similar ventral bristle, this 

 type being curved and pointed with a spur at tlie base, as ii» 

 various Syllids. A female in May had two ova in each 

 seoinent from the tenth to the twenty-second {Southej-n). 



Grubea linibata, Claj)are(le, comes from low Avater and 

 the laminarian region at Pl\ mouth {Allen). The head has a 

 similar arrangement of the tentacles to that in G. clavata, 

 the two lateral being anterior, the median posterior, and 

 they are somewhat fusift)rm, the base being enlarged, whilst 

 the distal region is tapered. Four large brownish eyes 

 occur posteriorly, the anterior being wider apart^ and all 

 have lenses. The proboscis occupies segments 2-5, and has 

 no denticulations on the anterior rim, but the lateral walls 

 are crenulate. The pigmented layer is marked by a pale 

 ring as in G. tenuicirrata, and the organ presents a glandular 

 appearance. The proveutriculus is in segments 6-8, and 

 has twenty rows of glands ; its anterior part seems as if 

 clothed with a horny coat, which may be a continuation of 

 the proboscidian tissue. The stomach is in segment 9 and 

 has a pair of glandular pouches. The chloragogenous 

 intestine follows. 



The head of Grubea pusilla, Dujardin, from the vvest 

 coast of Ireland and Plymouth, has long soldered palps; 

 four lateral tentacles towards the anterior part of the head, 

 the longer median in front of the posterior border, all 

 having the fusiform enlargement at the base, whilst they 

 are tapered distally. The four eyes are furnished with 

 lenses, and the anterior are wider apart. There are four 

 tentacular cirri. The proboscis is smooth with tooth near 

 anterior end. The body is about 2-5 mm. in length, and 

 has from twenty-eight to thirty-four segments. Posteriorly 



