366 [June, 



NEMERTID^. 



1. BoRLASiA. XuRTzir, Girard. Body elongated, three or four inches Ions:, 

 subcylindrical, somewhat depressed, continuous from head to tail. Anterior 

 region rounded, elliptical in a retracted state, conical when protruded. Color 

 uniform brownish red, lighter beneath. 



From Charleston Harbor, east of Fort Johnson; found on muddy sandy flats 

 on the third littoral region. 



Genus RENIERIA, Girard. Body elongated and subcylindrical. Head coni- 

 cal and continuous with the body without any contraction of the neck. A 

 longitudinal and lateral fissure on each side, as in Meckelias. Mouth nearly ter- 

 minal, on the upper surface, as in Valencinias. Eyes specks wanting. 



2. Renieria rubra, Girard. Body subcylindrical, a little broader than deep, 

 four or five inches long when in a live state. Head conical, subtriangular, 

 tapering forwards, split or furrowed on the sides. Mouth narrow and elongated, 

 approximating the tip of the snout. Color uniform brick red, paler beneath. 



Dredged on muddy sandy flats east of Fort Johnson, Charleston Harbor. 



Genus LEODES, Girard. Body elongated, depressed, posteriorly tapering. 

 Head separated from the body by a contracted neck, which is provided with a 

 longitudinal fissure on either side. Mouth terminal. Eyes wanting. Habits 

 not fossorial. 



This genus is closely allied to Mechelia.^ from which it however differs in the 

 continuity of the head and body, and also in the shape of the mouth, to which 

 may be added the mode of coloration as described below. 



3. Leodes striolenta, Girard. Body when extended, six inches in length and 

 two tenths of an inch in width ; somewhat convex anteriorly, broader and flat- 

 tened posteriorly. Head a little smaller than the body, somewhat elongated, 

 bluntly pointed, tapering, and separated from the body by a broad or very shal- 

 low constriction. Mouth slit, conspicuously long. Clefts on the sides of the 

 neck very deep. Posterior extremity sharp and pointed. Body thickest ante- 

 riorly, with a rounded margin, compressed posteriorly with a sharp margin. 

 Color of the body above dark pink, with a narrow line of deeper pink near the 

 margin on each side, and covered with crowded, narrow, dark grayish or black 

 longitudinal lines, darkest anteriorly. Body margined for the posterior two 

 thirds with light yellowish gray. Head light gray with longitudinal black 

 blotches, fewest towards the margin. Beneath dark red, with anteriorly dark 

 gray blotches, mostly towards the margin, and a white medial line; and pos- 

 teriorly without dark spots and with a red medial line and yellowish margin. 

 Tail pale, with very few small scattered spots. In the young the colors are 

 all pale except at the head, so that the dark branching intestine, occupying the 

 posterior thr^e fifths of the animal, is easily seen. 



Found at Fort Johnson, under stones on hard clay, at low water. 



4. Amphtporus sanguineus, Girard. Body elongated, depressed, anteriorly 

 broad, posteriorly tapering, sides parallel, undulating when the animal is in 

 motion. Head continuous with the body, and pointed forwards. Mouth termi- 

 nal, minute. Generative opening very much elongated, approximating the end 

 of the snout. Anus not quite terminal. Color uniform blood red. 



From the fourth littoral region, near Fort Johnston, S. C. 



5. Meckelia Pocohontas, Girard. Body very much depressed, flattened with 

 a sharp margin, attaining sometimes a length of three feet. When immersed in 

 alcohol it contracts to nearly half of that length ; the anterior third of the body 

 then becomes subcircular, with blunt edges contrasting considerably wiih the 

 remainin;; portion, which preserves its flattened shape and sharp edges. The 

 head is conical, tapering forwards and continuous with the body. Snout split 

 vertically, dividing the upper and lower lip. The vertical split, however, afl>ct- 

 ing only ihe tip of the snout, whilst the horizontal split extends to the whole 

 length of the head. Generative aperture narrow and elongated, situated near 



