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PROCEEDINGS OF THE NATIONAL MUSEUM 



Cambarincola phila delphica (Leidy) 



Figures 19a-d 



Astacobdella philadelphica Leidy, 1851, p. 209. 

 Branchiobdella philadelphica Moore, 1894, p. 427. 

 Bdellodrilus philadelphicus Moore, 1895b, p. 498. 

 Cambarincola philadelphica Ellis, 1912, p. 485. 



Diagnosis. — Hoffman (1963, p. 346) stated: 



Peristomium divided into dorsal and ventral lobes, the dorsal larger and with four 

 low marginal lobations; jaws relatively large and subrectangular in lateral aspect, 

 the dorsal jaw usually a little larger than the ventral [and the dental formula 5/4 

 to 3/2]; male reproductive system moderate in size, filling from half to two-thirds 

 of the coelom of one side of segment VI; bursa elongate, at least twice as long as 

 broad, the penial sheath merging gradually into a fairly short ejaculatory duct; 

 spermiducal gland slender and recurved ventrad, twice the diameter of prostate, 

 latter long and slender, reaching to ental end of spermiducal gland. 



Figure 19. — Cambarincola philadelphica, lateral views: a, entire animal; b, male reproductive 

 system and spermatheca; d, jaws. Dorsolateral view: e, jaws. (Abbreviations: b=bursa; 

 ed= ejaculatory duct; pr=prostate; sp=spermatheca; sg= spermiducal gland. After 

 Hoffman, 1963.) 



Range. — Eastern North America, from southern Canada south to 

 South Carolina and west to Wisconsin (Hoffman, 1963). 



Specimens examined. — More than 500 specimens in 72 collections 

 from the following stations: 3, 5, 8-10, 12, 14, 16, 17, 19-22, 24-29, 

 32-37, 39, 44-46, 48, 50-56, 59, 60, 66, 68, 69, 71, 74, 76, 77, 87-94, 98, 

 106-113, 115, and 118-125. These specimens came from all drainage 

 systems of the area and from elevations of 427 to 1170 m. 



Hosts and associates. — Cambarincola philadelphica was associated 

 with Cambarus acuminatus at stations 20, 27, 29, 32, 33, 35, 87-93, 112; 

 with C. b. bartonii at all stations except 20, 27, 33, 55, 56, 88, 106, 109, 



