130 PROCEEDINGS OF THE NATIONAL MUSEUM vol. i04 



vesicle is absent. The course of the uteri was not evident on the whole 

 specimen. 



Differential diagnosis: Anandroplana portoricensis differs from 

 the preceding species in eye pattern and in that the muscular mass of 

 the male apparatus surrounds the common sperm duct, whereas in 

 A. muscularis it surrounds the male antrum. 



Distribution: Collected by W. G. Hewatt at Rinc6n Playa, 

 Puerto Rico, Mar. 7, 1946, under fiat rocks in the surf zone. 



Holotype: Anterior half as whole mount, copulatory region as 

 sagittal serial sections (eight slides), deposited in the U. S. National 

 Museum, No. 24619. 



Remarks: These two species of Anandrojilana are rather astonishing 

 in their almost total want of the usual parts of the male copulatory 

 apparatus and also in the proximal expansion of the vagina into a 

 glandular chamber. Although they bear some resemblance to the 

 cryptocelid genus Ilyplanoides Kato, 1944, one might be justified in 

 creating a new family for them. 



Section Schematommata 



Family Leptoplanidae Lang, 1884 



Genus Notoplana Laidlaw, 1903 



Notoplana insuluris Hyman, 1939 



Notoplana insularis Hyman, 1939a, p. 1, figs. 1-3. 



Remarks: Five specimens of this species received from the U. S. 

 National Museum were found m the present material. The species 

 is readily recognized, when mounted whole, by the penis stylet and the 

 characteristic eye arrangement with the tentacular clusters incorpo- 

 rated into the cerebral groups to form a linear arrangement on each 

 side. As the species is sufficiently described and illustrated in the 

 original account, it appears unnecessary to repeat this information 

 here. The original specimen was 9 mm. long; the present ones are 5.5, 

 7, 9, 11, and 14 mm. in length but, as aU are somewhat contracted, it 

 seems probable that the species may reach a length of 18-20 mm. 

 when extended alive, although on the whole it is a rather small species 

 of the genus. AU of the specimens are of the brown color usual in 

 preserved polyclads; probably in life the species is pale. The speci- 

 mens were collected as follows: Biscayne Ba3^, Fla., by F. M. Bayer, 

 Aug. 1, 1951; eastern shore of harbor, Charlotte Amahe, St. Thomas, 

 Virgin Islands, by W. L. Schmitt on the Smithsonian-Hartford 

 Expedition, Apr. 4, 1937; Playa de Ponce Reef, Puerto Rico, on the 

 Fish Hawk Expedition, Feb. 1, 1899 (two specimens); and Port of 

 Spain, Trmidad, by W. L. Schmitt, Apr. 18, 1939. The origmal 

 specimen came from Old Providence Island. Evidently the species is 



