430 A. E. Yerrill — Marine Nemerteans of Neto England, etc. 



The type-specimen, described above, as now preserved in alcohol, 

 has a stout body, thickest anteriorly, tapering to the hind end, 

 which terminates in a small, whitish caudal papilla. The sides are 

 everywhere rounded. Head short, thick, subconical, blunt, not dis- 

 tinct from the body ; proboscis-pore terminal, in the form of a short 

 vertical slit ; lateral cephalic slits moderately long, joining the pi'o- 

 boscis-pore in front, so as to divide the tip of the snout into four 

 parts. Mouth small, rounded, opposite the posterior ends of the 

 cephalic slits. 



Length in alcohol, 64'"™; diameter 3"""; length of cephalic slits 



omm 



Eastport, Me., at Clark's Ledge, extreme low- water mark, under 

 stones, 1870. 



Micrura rubra Verrili, sp. nov. 



PLATE XXXVIII, FIGURES 3, 3a, 9, 9a. 



Body moderately large, subterete and elongated in extension, up 

 to 3 inches long, rather more slender posteriorly. Head obtuse or 

 rounded in front ; proboscis- pore a vertical terminal slit ; cephalic 

 slits or cephalopori long and deep, in front joining the proboscis- 

 pore so as to divide the tip of the snout into four small lobes ; the 

 slits extend back as far as, or beyond, the mouth, which is ordinarily 

 a small elliptical opening. No ocelli. 



Color, above, light orange red to bright red, indistinctly mottled 

 along the sides with brownish red, due to internal organs. 



Length 62 to 75'"™ in extension ; diameter 2'5""'\ Described from 

 life. (No. 722). 



In alcohol the specimens above described are much contracted, 

 thick and short, stoutest anteriorly, tapered, but scarcely flattened 

 posteriorly. Ovaries filled with eggs commence some distance 

 back of the head. Cephalic slits moderately long and deep, joining 

 the proboscis-pore in front. Prosboscis, as ejected, coiled in a 

 spiral, moderately long and rather thick, tapering to both ends. 



OflP Casco Bay, July 16, 1873. 



A curious specimen (Plate xxxviii, fig. 3, 3f/), probabl}^ of this 

 species, was taken in the Bay of Fundy. It had, apparently, been 

 broken and was in the act of reproducing the hinder ])art of the 

 body. 



Body round, cylindrical in extension, very changeable in shape ; 

 posterior eiul abruptly narrowed into a small, round caudal portion 

 terminating in a small paj)illa. Head obtusely rounded or obliquely 



