POLYCLADS OF W. INDIES AND FLORIDA — HYMAN 131 



common in the Caribbean and West Indies and also occurs on the 

 southern part of the coast of Florida. There appears to be some vari- 

 ation in the length of the stylet in different parts of this range. The 

 stylet appears shorter in the Trinidad and Old Providence Island 

 specimens than in those from Florida and the West Indies; but this 

 appearance is not correlated with the length of the specimens as the 

 Florida specimen is very small. The West Indies and Trinidad 

 specimens have been returned to the museum as whole mounts. 



Notoplana ferruginea (Schmarda), 1859 



Polycelis ferruginea Schmarda, 1859, p. 22, fig. 48. 



Discocelis hinoculata Verrill, 1901, p. 43, pi. 5, figs. 2, 3. 



Notoplana bahamensis Bock, 1913, p. 208, text-figs. 41, 42, pi. 6, figs. 2, 3. 



Notoplana ferruginea Stummer-Trauiifels, 1933, p. 3521, figs. 61-63. 



Notoplana caribbeana Hyman, 1939a, p. 2, figs. 4-8. 



Notoplana hinoculata Hyman, 1939b, p. 8, figs. 13, 14. 



Remarks: I took four specimens of this species alive in the inter- 

 tidal zone of South Bimini, Bahamas, in August 1952, and four addi- 

 tional specimens were found in the present material as follows: three 

 from the Fish Hawk Expedition to Puerto Rico — one collected at 

 Fajaido, Feb. 17, 1899, and two taken at Ensenada, Honda, Culebra, 

 no date — and one collected by W. G. He watt at Cay a Enrique, 

 Parquero, Puerto Rico, Nov. 22, 1945, under coral rock. The 

 original Schmarda specimen came from Jamaica; VerrUl found the 

 species in the Bermudas; the Bock specimens came from Andros 

 Island in the Bahamas; and the specimen taken on the Presidential 

 Cruise of 1938 came from Old Providence Island. Evidently the 

 species is common in the Caribbean- West Indian region. The trivial 

 name is a misnomer, as N. ferruginea is nulky white when aUve but it 

 tends to darken on preservation; two of the Fish Hawk specimens were 

 practically black. The species probably shows some geographic varia- 

 tion and at one time (Hyman, 1939b, p. 9) I regarded the Bermudan 

 form, A^. hinoculata, as distinct from the West Indian and Caribbean 

 specimens; but I am now convinced that all of the names given in the 

 synonymy belong to one species. The figures of the eyes given by 

 Bock (1913) and Hyman (1939a) are more characteristic of the species 

 than the eye figure of Stummer-Traunfels (1933, p. 3523). In the 

 latter, the cerebral eyes are more scanty and smaller relative to the 

 tentacular eyes than in the specimens available to me. Whether the 

 Jamaica specimens actually differ in these regards from specimens 

 from the Bahamas and Puerto Rico cannot be decided without more 

 material from Jamaica. The characteristic feature of this species is 

 the heavy musculature ventral to the long tubular male antrum. 

 The specimens sent by the U. S, National Museum have been returned 

 to that institution. 



