PEOCEEDINGS OF THE NATIONAL MUSEUM. 163 



Host. — Black Howler {Alouatta caraya (Humboldt) [Mycetus niger]) 

 in Paraguay, collected by Neunieister. 



Types. — 111 collection of Leuckart; one cotype iSTo. 1483, U.S.N.M. 



In the cotype of this species at my disposal the uterus is not devel- 

 oped. The worm presents an entirely different appearance from 

 Andrya. The muscular cirrus i>ouch seems to ])e almost wanting-, so far 

 as I can distinguish, the end of the male canal appearing simply as a 

 widened portion of the vas deferens with very weak muscles and much 

 less prominent than the vagina. The prostatic gland, so characteristic 

 i'ov Andrya rliopalocephala and A. eiiniculi, is entirely wanting. Plate 

 IX, tigs. 4-5, give the general topographical anatomy of the segment. 



I do not believe that the division of the ovary into two wings as 

 described by Meyner can be maintained, for in the cotype this division 

 is extremely irregular. In some cases the ovary is not divided ; in other 

 segments it is divided into two, three, or four wings. I further tind the 

 dorsal canals dorsal to dorsolateral of the longitudinal canals. 



BERTIA CONFERTA (Meyner, 1895), Stiles, 1896. 



(Plato IX, fig. 6.) 



1895, Twuia {Beriia) oonferfa, Meyneu, Zeitschr. f. Naturw., LXVIII (5 scr., Yl), 

 pp. 86-103, pi. 1, figs. 8-13. 



JJiaynosis. — Bcrtia conferta (Meyner, 1895), Stiles, 1800: Strobila 

 attains 84 mm. or more in length by G.5 mm. in breadth ; serrate. Head 

 roundish, 0.<i8 mm.; rostelluin wanting; suckers oval. ISTeck about 2 

 mm. long, at first about as broad as the head, from which it is not 

 sharply separated. Segments always much broader than long; sexual 

 segments measure 5.1 mm. broad by 0.27 mm. long by 1.02 mm. thick. 

 Genital pores irregularly alternate. Male organs: Testicles numerous 

 in dorsal portion of median field (in figure, of transverse section con- 

 fined to aporose two-thirds of median field at plane of genital pore), 

 vas deferens dorso- anterior of vagina, its lateral portion quite wide; 

 cirrus-pouch"? Female organs: Glands in middle of pore side of seg- 

 ment; receptaculum seminisoval; vagina with widened ciliated lateral 

 portion. Uterus single, transverse, at first tubular, later with blind 

 sacs. Ova begin to enter uterus 35 mm. from head in about the one 

 hundred and thirtieth segment. Three lateral longitudinal nerves as 

 in B. nmcronata. Dorsal canal dorsal of ventral (tanal. Genital canals 

 pass dorsally of longitudinal canals. Calcareous bodies numerous, may 

 attain 19 /^; 20 to 25 visible on transverse section of sexual segments, 

 600 to 800 on transverse section of distal segments. 



Host. — Bonnet Monkey {Macacus sinicus (Linntieus) [Macacus 

 radiatns]). 



Type. — In collection of Leuckart. 



While looking upon Meyner's paper as an interesting and impor- 

 tant contribution to the knowledge of the worms of this group, I do 



