﻿146 LEIDY ON THE MARINE INVERTEBRATE FAUNA OF 



36. Clymene torquatus, Leidy. Body cylindrical, with a membranaceous collar at 

 the fifth segment. Head abruptly truncated, concave, with a thin membranous border 

 emarginate below and on each side. Mouth inferior, at the summit of a double 

 ringed papilla. Length? (the posterior portion of the only specimen found, is either 

 wanting or the body terminates very abruptly.) The anterior fourteen segments 

 measure one inch and a half in length by one line in breadth. Found with the pre- 

 ceding species. 



37. Pectinaria auricoma, Grube. (P. Belgian, Grube, Gould ; P. Groenlandiea, 

 Grube, Stimpson)? Body composed of nineteen segments including the head and 

 tail. Paleos eight to sixteen in a fasciculus, according to age. Twenty-eight denticula- 

 tions to the frontal border. Length up to an inch and a half. Point Judith and Great 

 Egg Harbor. 



38. Terebella ornata, Leidy. (PL XL figs. 44, 45.) Body with about one hun- 

 dred segments, of which forty -five are setigerous. The anterior ten ventral plates trans- 

 versely oblong square, those succeeding abruptly diminished in size. Tentaculce nume- 

 rous ; branchise in three pairs. Color brownish red. Length to four inches. Lives 

 in tubes of mud. Found at Point Judith, Atlantic City, and Beesley's Point. 



I found the young of this species at Point Judith. It had the appearance of that 

 of Terebella nebulosa, Mont., represented in fig. 24, pi. 3, of M. Edward's Rech. Anat. 

 et Phys. etc. The single specimen obtained was three lines long. There were twelve 

 tentaculse, twenty-five eyes around the head, and twenty-eight segments to the body, 

 of which sixteen were setigerous. 



39. Spirorbis spirillum, Lamarck. On Chondrus crispvs. Point Judith. 



Torquea, Leidy. Body cylindrical, narrowed at the extremities. Tentacular 

 numerous, attached laterally to the head, capable of very great extension and con- 

 traction by the passage to and fro of blood corpuscles from the cavity of the body. 

 Eyes none. Setae in two rows, three to twelve in a fasciculus, extremities lanceolate. 

 Podal hooks in two rows, short, from twelve to forty in each transverse series, sup- 

 ported at the edge of a laminar process stiffened with fine, simple setaa. 



40. Torquea eximia, Leidy. (PI. XL figs. 51, 52.) Body soft, blood red. Ten- 

 taculae very numerous, capable of very great extension by the propulsion into them 

 of the bright red corpuscles, with which the cavity of the body is filled. Setaa anteriorly 

 in fasciculi of twelve, posteriorly from three to six. Podal hooks commencing at 

 the eighth segment, from twelve to forty in each series. Worm half an inch to an 

 inch in length, with from forty to sixty segments. Obtained from mud and sand 

 below low tide mark. Point Judith. 



This worm is remarkable for its softness, its blood red color, its numerous extensi- 



