638 BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



continuous with the vagina extensively surrounded by numerous 

 glands. The vagina proceeds forward for some little distance, then 

 bends abruptly upward and backward and soon receives on the ven- 

 tral side a common uterine duct. Beyond this point the terminal 

 vaginal duct runs backward and downward, describing an arcuate 

 course, and finally opens into the antrum a little inward to the exter- 

 nal female gonopore from behind. Thus the vagina and the terminal 

 vaginal duct together form a complete irregular loop. There seem 

 to be no special glands present along this terminal duct. The com- 

 mon uterine duct just mentioned is very short and divides anteriorly 

 into two uteri, which run forward on either side. 



The present example, so far as its external characters are con- 

 cerned, closely resembles Laidlaw's Latocestus agrus, 2 a species 

 from Pulau Bidan, a few miles north of Penang ; but a closer exami- 

 nation has revealed the fact that this is only a superficial resemblance 

 and that it represents an interesting new species referable to the 

 genus Cryptophallus. Only one species, C. wahlbergi, of this genus 

 has been hitherto known and comes from South America. C. bartschi 

 may be easily distinguished by the different feature of the male or- 

 gans, as is evidenced in the above description. Besides, the organs in 

 C. wahlbergi occur ventral to, instead of behind, the pharyngeal 

 cavity. 



COTYLEA. 



Family PSEUDOCERIDAE. 



Genus THYSANOZOON Grube. 



2. THYSANOZOON AUROPUNCTATUM Kelaart-Collingwood. 



Plate 1, fig. 2. 



Thysanozoon auropunctatum Kelaabt-Collingwood, 1876, Trans. Linn. Soc, 

 ser. 2, Zool., vol. 1, p. 94. — Stummer-Tbaunfels, 1895, Zeitschr. f. wiss. 

 Zool., vol. 60, p. 701. — Laidlaw, 1903, Proc. Zool. Soc. London, vol. 1, 

 p. 314.— Bock, 1913, Zool. Bid. f. Uppsala, vol. 2, p. 252. 



Thysanozoon verrucosum Grube in Lang's Monogr., p. 537. 



The collection contained a single specimen, which was found ad- 

 hering to a certain sea weed at Tacloban, Leyte, in April, and was, 

 unfortunately, in fragments, so that a satisfactory examination was 

 not possible. According to Professor Bartsch's note and colored 

 drawings taken from the living form, this planarian seems to be 

 identical with Kelaart's Thysanozoon auropunctatum, which is 

 known to occur in Samoa, Arip on the west coast of Ceylon, Pulau 

 Bidan on the west coast of Malacca, and Cape Jaubert in West Aus- 

 tralia. 



3 Laidlaw, 1903, Proc. Zool. Soc. London, vol. 1, p. 312. 



