Freshwater Triclads (Turbellaria) of North America. 
XII. Another New Cave Planarian from North Carolina, 
Phagocata carolinensis n. sp. 
Roman Kenk 
m 
Department of Invertebrate oology , 
National Museum of Natural History, Smithsonian Institution 
Washington, D. C. 20560 
ABSTRACT. — Phagocata carolinesis n. sp. from One Bat Cave, Burke 
County, North Carolina, is a slender, unpigmented species with two 
small eyes and is characterized by its peculiar penial anatomy and by 
the development of an enormous vagina with special histological dif- 
ferentiation. It belongs to a group of closely related species of Phagocata 
distributed in the Appalachian region. 
Through the courtesy of Dr. Cato O. Holler, Jr. of Old Fort, North 
Carolina, I received some specimens of a new species of Phagocata , collec- 
ted in a cave in Burke County, North Carolina. Dr. Holler is with the 
North Carolina Cave Survey and an investigator in the Biological Survey 
of North Carolina Caves. 
Phagocata carolinensis , new species 
Type-material (deposited in the U. S. National Museum of Natural 
History [USNM], Smithsonian Institution, Washington, D. C.). — Holo- 
type, set of sagittal sections on 3 slides (USNM 58431); paratypes, sagit- 
tal and horizontal sections of 2 specimens on 12 slides (USNM 58432- 
58433). 
External features (Figs. 1A, IB). — The species is unpigmented (white), 
externally indistinguishable from Phagocata angusta Kenk (1977) or P. 
holleri Kenk (1979). In gliding locomotion the body is very slender, 
reaching up to 13 mm in length and about 1 mm in width. The truncate 
head has a somewhat wavy frontal margin and bears on each side a 
lateral projection, slightly more distinct than that of P. holleri. Posterior to 
these projections the head narrows, forming a kind of neck. Behind the 
neck the lateral body margins diverge again gradually to reach the max- 
imum width, then run parallel for the greater part of the body length, to 
converge again and to meet at the rather rounded posterior end. 
The two small eyes are situated close together at a considerable dis- 
tance behind the frontal margin of the head. The intestine reaches 
Brimleyana No. 2: 91-96. November 1979 
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