ON FLOSCULARIA CONKLINI, NOV. SPEC., WITH A 



KEY FOR THE IDENTIFICATION OF THE 



KNOWN SPECIES OF THE GENUS. 



THOS. H. MONTGOMERY, JR. 



i. FLOSCULARIA CONKLINI, nov. spec. 



Corona with five lobes, the dorsal largest, the ventral next in 

 size, the lateral very small. The lobes are broad, without knobs 

 and confluent at their points of insertion upon the corona. Vibra- 

 tile cilia, of a length not greater than that of the corona and some- 

 times considerably shorter, line these lobes in a single row, but 

 are not present between the lobes. Corona usually less than half 

 the length of the trunk, which is slender and not very sharply 

 demarcated from the foot. Foot fully two and a half times the 

 length of the rest of the body, terminating in a peduncle which 

 is as broad as long. Dorsal and lateral sense organs are present, 

 but no eyes in the adult. The body cavity is closely filled with 

 numerous minute floating corpuscles, so that the animal appears 

 dark by transmitted light. Tube large, gelatinous, usually with 

 foreign particles adhering to its surface. Length about that of 

 F. canipamdata Dobie. Two or three ova are frequently found 

 in the oviduct at once, and from thirty to forty male eggs within 

 the tube. 



This species I found in considerable numbers in a pond on 

 the grounds of the University of Pennsylvania attached singly to 

 Myriopliylhun, during the early portion of 1903. It is a pleasure 

 to me to name it in honor of my friend, Prof. Edwin G. Conklin. 

 A full description of the anatomy with figures is reserved for an- 

 other paper upon the morphology of the Flosculariidae. The 

 new form differs from the closely related F. ainbigua Hudson in 

 the shortness of the cilia and their vibratile nature (they are not 

 stiff radiating setas) in the much greater length of the foot and 

 its very short peduncle, in the rather cylindrical and narrow 

 corona, in its smaller size, and particularly in its germarium being 

 rounded whereas mambigua I have found it to be elongate and bent. 



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