246 PROCEEDINGS OP THE NATIONAL MUSEUM. voi,. 55. 



XIRONODRILUS PULCHERRIMUS (Moore). 



Plate 13, fig. 2. 

 Branchiohdella pulcherrima Moore, Proc. Acad. Nat. Sci. Phila., vol. 45, 

 pp. 423-425, pi. 12, figs. 2a, 2b, 2c, and 2e, 1893 (Wautauga County, 

 North Carolina, on Camharus harionii). — Smallwood, Biol. Bull., vol, 

 11, No. 2, pp. 100 and 106, fig. 2, 1906 (Lake Clear, Harrietstown, 

 Franklin County, New York). 



Specimens.— F'wQ (3=Cat. No. 17630, U.S.N.M.), Trubies Eun, a 



tributary of Buckhannon River, 7 miles above Buckhannon, West 



Virginia, August 4, 1899 (U. S. F. C), on Cam- 



f\ A hams obscurus Hagen; five (Cat. No. 17G31, 



^C>=/^^;:^-i U.S.N.M.), Right Hand Fork of Chenowith 



\f '"■ ' '■"'^ ""'y Creek, Queens, West Virginia (U. S. F. C), on 



"^ --"^ Cambarus ohscunis Hagen; two (l=Cat. No. 



FIG. 5.-UPPER .AW OF j,j.g32 u.S.N.M.) , Shavers Fork, of Cheat River, 



XIRONODRILUS PULCHERRI- "i / 5 •> 7 



Mus (MOORE), FROM West Virginia (U. S. F. C), on Cambarus 

 QUEENS, WEST VIRGINIA, lavtonii caHnirosfrJs Hay : one (Cat. No. 17633, 



TVPF TI 



U.S.N.M.), Cheat River, near the Pike, West 

 Virginia, July 25, 1899 (U. S. F. C), on Cambarus bartonii cari- 

 nirostris Hay; three (2 = Cat. No. 17634, U.S.N.M.), Cheat Bridge, 

 Randolph County, West Virginia, July 24, 1899 (U. S. F. C), on 

 Cambarus bartonii carinirostris Hay; eight (6=Cat. No. 17635, 

 U.S.N.M.), Chenowith Creek, between Beverly and Elkins, West 

 Virginia, July 4, 1899 (U. S. F. C), on Cambarus bartonii cariniros- 

 fris'llny; eight (6=Cat. No. 17637, U.S.N.M.), Laurel Fork, Cheat 

 River, near Seneca Point, West Virginia, August 31, 1899, on Cam- 

 barus bartonii carinirostns Hay; one (Cat. No. 

 17636, U.S.N.M.), Indian Creek, Kanawha 

 County, West Virginia, August 6, 1900, on Cam- 

 hams bartonii veteraniis Faxon ; one, near Bailey- 

 ville, West Virginia, August 15, 1900, on Cam- 

 barus duhius Faxon; two. Blowing Rock, Wau- ^^^ 6.— lower jaw of 

 tauga County, North Carolina, 1893 (J. P. xironodrilus pulcher- 



^ ^, 7 .•/■¥-<l--\ RIMUS (MOORE). SAME 



Moore), on Cambanis bartonii (I'abricius) ; one specimen fig. 3. type 

 specimen. Cat. No. 17714, U.S.N.M., on Cam- "'• 

 harus dubius Faxon, from Rock House River near Baileysville, West 

 Virginia, August 17, 1900, U. S. B. F. (No. 873). 



Through the kindness of Prof. J. P. Moore the writer received tv,'o 

 specimens of this species collected by Professor Moore at Blowing 

 Rock, North Carolina, in 1893. Both of these specimens have jaws 

 of the 3-3 type, in accord with Moore's original description.^ In 

 the collections of the United States National Museum, however, 37 

 specimens were found which have jaws of the 4-4, 5-4, and 5-5 types, 

 although these worms do not appear to differ in other characters 



i Proc. Acad. Nat. Sci. Phila., vol. 45, 1895, p. 42.3. 



