108 Prof. M'Intosli's Notes from the 



border is three-lobed, as in M. elisabetha. The hooks have 

 four teeth. No mention is made of the two dorsal post- 

 branchial hooks, and thougii Fauvel subsequently alUides to 

 them as the homologues of the palese and trausformed dorsal 

 bristles, there is nothing distinctive in either figure or 

 description. The forms appear to differ. 



The eightli species is Melinna adriatica, Marenzeller, a 

 southern form from Plymouth (Dr. Alien) and Torquay 

 (Major Elwcs). In general aspect this form approaches 

 Melinna o'istata, though it diHers in the appearance of the 

 branchiaj and the obscurity of the branchial hooks. 



The snout bears a series of smooth teutacleSj twelve in 

 number, the shorter forms being inferior. They occur ou 

 the dorsal base of a funnel-shaped process, apparently the 

 homologue of the cephalic plate of the Terebellids, which 

 leads to the mouth. In his account of the species, Maren- 

 zeller mentions only f<mr tentacles, but they are easily 

 removed in preparations. The shape of the anterior region 

 of the body agrees with that of the ty[)ical forms, three 

 bristle-tufts being borne by the oblique anterior part. The 

 ventral collar behind the snout is prominent and smooth, 

 the angle in front of the first bristle-bundle being con- 

 spicuous in a ventral view. Posteriorly the body terminates 

 in an anus with a somewhat dilated rim. 



The branchiro resemble in general aspect those of M, cris- 

 tata, though distinguished l)y their transverse bars and 

 arrangement, since the four branchia; on each side arise from 

 a curved base, and are all visible from the rear. The 

 branchial hooks are minute and readily escape detection, 

 and thus are in contrast with the two forms most abundant 

 in the north. The shaft is broad and short, striated, and 

 the sharp hook at the ti[) leaves the neck at more than a 

 right angle, the whole being similar to that of Mcl'iniia 

 viucaluta, Webster, which approaches Marenzeller's form. 



Behind the foregoing region, at the fourth bristled seg- 

 ment, is the dorsal collar, which is somewhat narrower and 

 less distinctly denticulated than in the two forms previously 

 mentioned, the pa|)iilM' having a tendency to fuse with each 

 other, and thus lose the featnie so characteristic of J/, crisluta. 

 There are usually four to eight rounded (imljriie. 



The tip of the foot is more distinctly diiferentiated than 

 in M, cristuta, as a l)luntly conical process marked oft" from 

 the rest of the foot l)y a slujulder. Moreover, tin; hristles 

 are proportionally larger and more deej)ly tinted yellow by 

 transmitted light. The longer forms have lu-arly straight 

 shafts and finely tapered tips with just a trace of a heiid^ 



