﻿430 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 102 



Timor; Sharks Bay and Rottnest Island, western Australia; in the 

 Java Sea, Billiton and Nordwachter Islands; in the Pacific, Sydney 

 (Port Jackson), Eimeo, and Tahiti; in the Atlantic and Mediterranean, 

 Bermuda and Villefranche. 



I doubt whether any of these records are valid for Phascolosoma 

 agas^izii as defined in this paper. Some of them may reasonably 

 refer to Ph. puntarenae, a tropical species that has been confused with 

 agassizii, a cool- or cold-water form. Fischer (1922a, pi. 1) gives 

 figures of hooks from Sharks Bay (fig. 5), Port Jackson (fig. 6), 

 Panama (fig. 7), and California (fig. 8). Fischer's figures 7 and 8 

 represent hooks of jmntarenae and agassizii as understood in this 

 paper, although as represented the light streak has too slight a swelling 

 to be quite typical of Panamic specimens while it is over-emphasized 

 in the California example (where it is often absent). These two 

 Fischer regards as agassizii, as also the quite different Australian 

 examples, which do not seem to me to represent either puntarenae or 

 agassizii. Fischer's paper is exceptional in giving figures of details. 

 Without them it is impossible to evaluate records. 



To those who hold that agassizii and puntarenae constitute a single 

 species, it is necessary to point out that the latter name has 7 years 

 priority. 



PHASCOLOSOMA PUNTARENAE Grube 



Plate 36, Figures 1, 2; Plate 37, Figures 1-3; Plate 39, Figure 3 



Phascolosoma puntarenae Grube, 1859, p. 13. 



Phascolosomum puntarenae Diesing, 1859, p. 761. 



Sipunculus (Phymosomum) puntarenae Quatrepages, 1866, p. 624. 



Phascolosoma agassizii Keferstein, partim, 1866, p. 218; 1867, p. 46, pi. 6, 



fig. 8. 

 Phymosoma agassizii var. puntarenae Selenka, 1883, p. 79. 

 Physcosoma agassizii, partim, authors. 



Diagnosis — Size small to medium (68 mm.), in general form similar 

 to Phascolosoma agassizii but with slightly longer papillae, especially 

 on dorsum of introvert; with transverse bars of brown on introvert; 

 tentacles 24 ; hooks in upward of 100 rings and half rings, but deciduous 

 and the number not constant. Differing from agassizii in structure 

 of hooks, in having generally slightly larger papillae with fewer and 

 less crowded platelets on their periphery, and in having a longer, 

 more conspicuous coecumi. Differing from Ph. nigrescens, to which 

 it is rather closely related, chiefl}^ in the less sharply bent hooks. 



Description. — The largest specimen (Espiritu Santo Island) meas- 

 ures 68 mm. in length, with introvert extended but not fully relaxed. 

 It more nearly resembles Phascolosoma nigrescens than it does Ph. 

 agassizii. The papillae are enlarged in the same areas as in agassizii 

 but the difference is not so marked, as the minor papillae are a little 



