Marsipobranchs of the Order Hyperoartii. 197 



2. Geotria stenostoma. 



Geotria chilensis (part.), Giinth, Cat. Fish. viii. p, 509 (1870). 

 Felasia stenostomus, Ogilby, Proc. Linu. Soc. N.S.W. xxi. 1896, p. 409. 

 Macrophthalmia chilensis, Plate, Sitzungsb. Ges. natiirf. Vr, Berlin, 



1897, p. 187. 

 Geotria chilensis. Plate, Zool. Jahrb. Suppl. v. 1902, p. 660, pi. xi.^. 



figs. 7-16. 

 Geotria stenostomus, Plate, t. c. p. 671, pi. xix. fig. 21. 



Australia; New Zealand ; Cliile. 



1.510 mm. Otago. Otago Mug. 



2-3. 500-530 mm. New Zealand. W. Colenso, Esq. 



4. 540 mm. Swan liiver. 



In all tliese tlie middle cusp of the anterior lingual lamina 

 is well developed, but shorter and weaker than the lateral 

 cusps. Ogilby (p. 4 10) describes the median cusp as being " as 

 long as the outer pair," but elsewhere (p. 416) he states that 

 the middle cusp is absent in oiieof his three examples. Four 

 of Plate's specimens agree in this cliaracter with those listed 

 above, but in a fifth the median cusp is as long as the others, 

 and in a sixth (his G. stenostomus) not only as long but as 

 strong as the lateral cusps. 



3. Geotria sacciftra^ sp. n. 

 New Zealand. 

 1. 420 mm. (type of the species). Otago. Otago Mas. 



4. Geotria austrulis. 



Geotria australis, Gi'&x, Chondropt. p. 142, pi. ii. (1851), or Proc. Zool. 



Soc. 1851, p. 238; "'Giinth. Cat. Fish. viii. p. 508 (1870) ; Ogilby, 



Proc. Linn. Soc. N.S.W. xxi. 1896, p. 422 j Plate, Zool. Jahrb. 



Suppl. V. 1902, p. 668, pi. xix. figs. 17-19. 

 Velasia chilensis, Philippi, A.rch. f. Nat. 1857, p. 266, and 1863, pi. x. 



fig. a. 

 Thysanochilus valdivianus, PhUippi, t. c. p. 268. 

 Geotria allportii, Giinth. Proc. Zool. Soc. 1871, p. 675, pi. Ixx. 



Australia; Cliile. 



1. 480 mm. (type of the species). lukaspinki. R. A. Pain, Esq. 



2. 410 mm. ' S. Australia. Army Med. CoU. 



3. 350 mm. (type of G. allpoi-tii). Tasmania. M. AUport, Esq. 



5. Geotria macrostoma. 



Petromyzon macrosto)nus, Burmeister, Ann. Mus. Buenos Aires, pt. 5, 

 1868; Act. Soc. Palffiont. p. xxxvi : Giinth. Cat. Fish. viii. p. 506 

 (1870). 



