﻿148 LEIDY ON" THE MARINE INVERTEBRATE FAUNA OF 



furcate handle and a long linear lanceolate blade. Length up to five inches, with a 

 breadth of one and a half lines, and about 240 setigerous segments, between each of 

 which is a secondary ring. Found at Point Judith, Atlantic City, and Great Egg 

 Harbor. It is most like the Olycera capitata Oersted, but nevertheless is a different 

 species. 



45. Nereis denticulata, Stimpson. Abundant at Point Judith, R. I., and on the 

 shores of Great Egg Harbor, N. J. 



46. Siphonostomum affine, Leidy. Body cylindro-fusiform, minutely papillated, 

 with four rows of fasciculi of seta3 ; those of the anterior three segments directed for- 

 ward; those of the first segment one-third of an inch long; those of the third segment 

 one line long. Length to three inches, by two lines broad, with 80 segments. Ob- 

 tained by Mr. Ashmead, from Beesley's Point, N. J. 



47. Lepibonote armadillo, Leidy. (Aphrodita armadillo, J$osc, Lepidonote punctata, 

 Oersted, Stimpson; Polynoe squamata, M. Ed., Gould)? (PL XI. fig. 54.) Body of 

 twenty-four segments, with twelve pairs of elytrse completely covering the back. 

 Elytrae fringed externally, spotted with variously colored papillae. Head round, with 

 two pair of eyes, three anterior tentaculae and three lateral tentaculae ; the middle of 

 the anterior and the first of the lateral tentaculae the longest, the former with two eye- 

 like black spots, the latter with none ; all the others with a single black eye-like 

 dilatation or spot. Dorsal and anal cirri with black eye-like dilated spots. Length 

 an inch and a quarter, by three lines wide. Point Judith and Great Egg Harbor. 

 The Lepidonote squamata is described as having five tentaculae; in L. armadillo I in no 

 case could find less than nine, as represented by figure 54. 



48. Sigaliok Mathilda, Aud. et Edw- (PI. XL fig. 53.) Body composed of over 

 200 segments, with over 150 pairs of elytrae completely covering the back. Head 

 with five antennae, of which the outer ones are the lonarestand most robust, the middle 

 one is next in length, and the second is the shortest. Eyes four, those anterior nearly 

 concealed by the bases of the second antennae. Setae of the dorsal pinnae simple; 

 those of the ventral pinnae compound. Length over five inches, by two and a half 

 lines in breadth. Described from a specimen, with the posterior extremity lost, ob- 

 tained by Mr. Ashmead, at Beesley's Point, N. J. 



49. Ophelia simplex, Leidy. Body fusiform, above convex, below flattened, an- 

 teriorly and posteriorly acute, reddish brown. Mouth inferior, round. Cirri com- 

 mencing at the third and ceasing about the twentieth segment. Setae in two lateral 

 approximated fasciculi, simple, linear. Length two-thirds of an inch, with about 30 

 setigerous segments. Taken from below low tide at Point Judith. 



50. Lumbriculus tenuis, Leidy. (PI. XI. fig. 64.) Body cylindrical, linear, bright 



