1868.] DR. W. BAIRD ON THE GEPHYREA. 83 



Sipunculus {Phascolosomum) harveyi, Quatrefages, Hist. Nat. 

 Aiinel. ii. p. G17, 1SG5. 



Ilab. Coast of England, Weymouth, Devonshire, Cornwall, «S;c. 



B.M. 



2. Phascolosoma forbesi*. 



Syrinx forbesii, M'Coy, Ann. & Mag. Nat. Hist. xv. p. 273, t. IG. 

 f. 3, 1845. 



Phascolosonmm forbesi, Diesing, Syst. Helminth, ii. p. 66, 1821 ; 

 Revis. der Rhyngod. /. c. 764, 1859. 



Sipunculus (Phascolosomum) forbesii, Quatrefages, Hist. Nat. 

 Ann. ii. p. 618, 1865. 



Hab. South Devon, Cornwall {Montagu, Laughrin). B.M. 



3. Phascolosoma tenuicinctum. 



Syrinx tenuicinctus, M'Coy, Ann. & Mag. Nat. Hist. xv. p. 273, 

 t. 16. f. 4, 1845. 



Phascolosomum tenuicinctum, Diesing, Syst. Helminth, ii. p. 64, 

 1851 ; Revis. der Rhyngod. /. c. p. 764, 1859. 



Sipunculus {Phascolosomum) tenuicinctus, Quatrefages, Hist. Nat. 

 Ann. ii. p. 618, 1865. 



Hab. Falmouth (/. Cranch). B.M. 



4. Phascolosoma oxyurum. 



Lumbricus oxyurus, Pallas, Spic. Zoolog. i. fasc. 10. p. 16, 1774 ; 

 Miscell. Zool. p. 147, t. 11. f. 7, 8, 1766. 



Sipunculus oxyurus, Blainville, Diet. So. Nat. xlix. art. Siponcle, 

 p. 312, 1828. 



Sipunculus, sp., Forbes, Biit. Starfishes, p. 255, 1841. 



Anoplosomatnm pallasii, Diesing, Syst. Helminth, ii. p. 69, 1851 ; 

 Revis. der Rhyngod. I. c. p. 756, 1859; Quatrefages, Hist. Nat. 

 Annel. ii. p. 631, lSG5t. 



Hab. Hastings; coast of Sussex (PaZ/as). B.M, 



5. Phascolosoma capsiforme, sp. nov. (PI. IX. fig. 3.) 



Corpus cylindrico-fusiforme, IcEvissimum, lutescens, in medio infla- 

 tum, sacciforme, capsico simile, apice caudali acuminuto, granu- 

 losa ; proboscis cylindrica, crassiuscula, cirris brevihns, nume- 

 rosis, apice clavaiis, obsita. 



Long, corporis 2 unc, crass, corporis in medio 10 lin., crass, 

 apic. caudal. 2^- lin. 



In this species the body is cylindrical and fusiform, very smooth- 



* In this species the extremity of the proboscis is surrounded by from six to 

 eight distinct circles of minute bristles, and the oral cirri are in the form of shoit 

 laoinia\ 



t One of the characters of the genus Ano2)losomafum, according to its founder, 

 Grube, and Diesing himself, is the j)osition of tlie anus in the caudal extremity. 

 Pallas, however, distinctly states that in tliis species the anus is placed in the 

 anterior portion of the body ; and the specimen we possess from the coast of 

 'Sussex, and which I refer 1o the o.Ti/itrv.s of Pallas, agrees in this particular with 

 the description given by tliat author. 



