418 PROCEEDINGS OF THE ACA.DEMY OF [1890. 



segment of half an inch, the segments readily separable are short 

 companulate, 0*175 mm. long and 0'375 mm. wide. From the 

 intestine of Mesoplodon sowerbiensis. Submitted by Dr. Cooper 

 Curtice, Washington. 



32. Tetrabothrium loliginis. 



Taenia lolicjlnis Leidy. Proc. A. N. S. 1887, 24. 



The Scolex of Tetrahothrium Rudolphi, or PhyUobothriwn Van 

 Beneden. A dozen specimens in alcohol, obtained from the Squid, 

 Oinmastrephes illecebrosa, at Bar Harbor, Me. In their present 

 condition they are an inch in length or less and from 2 to 3 mm. 

 wide, linear lanceolate, posteriorly acute and unsegmented. The 

 head is prominent, spheroidal and consists of four much folded 

 rosette-like lobes with hemispherical bothria. Submitted by Dr. H. 

 C. Chapman. 



33. Phyllobothrium inchoatum n. s. 



Ten specimens, taken from the blubber in the vicinity of the vent 

 of Mesoplodon sowerbiensis, preserved in alcohol, aj^pear as depressed 

 fusiform bodies from 14 to 18 mm. long and 3 or 4 mm. broad. 

 The retracted head is globose quadrate and is provided with four 

 larger globose and plicated bothria. Submitted by Dr. Cooper 

 Curtice, Washington. 



34. Pentastomum proboscideum Rudolphi. 



Cylindrical, slightly narrowing behind and ending obtusely ; head 

 marked by a constriction, spherical, fore and aft flattened and wider 

 than the body. 



Two females 100 mm. long with the head 5 mm. broad and the 

 body 3 mm. A male 35 mm. long, the head 4 mm. broad and the 

 body 2'5 mm., marked with about forty-eight rings. In the females 

 the fore part of the body is distinctly annulated, but indistinctly be- 

 hind. From the lung of a Black Snake, Coluber constrictor, Flor- 

 ida. Submitted by Mr. F. C. Baker. 



A male Pentastomum, obtained by the same gentlemen, from a 

 Skunk, Mephitis mephitica, is like the one above indicated. It is 

 SO ram. long and distinctly annulated with about forty-eight rings. 

 The head is cap-like, orbicular, convex dorsally and concave ven- 

 trally. 



