110 thr apodous holothurians 



Anapta gracilis. 



Plates II, Fig. 1 ; VII, Figs. 19-23. 



Ariapla rjrarUis Semper, 1868, p. 17; pi. in, fig. 1. Calcareous particles, pi. iv, 

 figs. 10-15. 



Length. — Up to 190 mm. 



Color. — Pale purplish brown (rosy in the figure given), with numerous 

 white papill;?. 



Distribution. — Eeported only from Manila, Philippines (Semper). 



Remarks. — It seems strange that such a large and well-characterized s]jecies 

 as this has not been met with since its original discovery, nearly 40 years ago. 

 The calcareous ring, ciliated funnels, reproductive organs, and sensory-cups 

 on the tentacles are all very much like those of a Leptosynapta. 



Anapta fallax. 

 Anapta fallax Lamport, 18896, p. 848. 



Length.- — Up to 80 mm. 



Color. — In life, flesh color, reddish anteriorly, the tentacles clear rose-red; 

 in alcohol, yellowish brown or yellowish white. 



Distribution. — Reported from off Cape Blanco, Argentina, 114 m. (Lam- 

 pert) ; Stanley Harbor, Falkland Islands, and southern coast of Tierra del 

 Fiiego (Ludwig) ; Punta Arenas, Susanna Cove and Calbuco, Chile (Ludwig) ; 

 near Wellington Island, Chile (Clark, antea). The range apparently includes 

 all the coasts of South America and neighboring islands south of 40° S., where 

 the water is less than 125 m. deep. 



Remarks. — This is decidedly the best known of the three species, but it is 

 somewhat difficult to see from the descriptions iiublished any important differ- 

 ence between it and the preceding species. Ludwig 's ('98c) statement, "wohl 

 aber finden sich bei einzeluen, aber nicht bei alien, Exemplaren, in den Langs- 

 muskeln, sehr zahlreiche, kurze, fast ovale Kalkstabchen und in den Fiihlern, 

 * * *, kleine, klammerformige * * * Kalkkorperchen, " leaves one in 

 doubt as to whether some of his specimens entirely lacked all calcareous par- 

 ticles or not, and if so, whether it might not have been due to acid alcohol. How- 

 ever, the geographical isolation of this species is so marked, it cannot be con- 

 fused with any other, and it may well be considered distinct until its identity 

 with gracilis is shown by a more careful study of the two species. According 

 to Ludwig ('98&), fallax lives "am strande, im Sande." 



Anapta subtilis. 

 Anapta subtilis Sluiter, 1888, p. 311. 



Length. — Not given: "nur etwa dreimal so lang als breit." 

 Color. — Brownish, with numerous, clear yellowish white papillae. 



