292 



DISCOVERY REPORTS 



conspicuously broader than long, narrowly contiguous. Five or four slender, pointed 

 arm spines. Tentacle scales normally two, but irregularly developed, there being often 

 only one scale. Some of the specimens have an indication of light brownish colour. 



The lateral plates are rather broad and the peculiar feature that these plates appear 

 double on the dorsal side of the arms, because the edge of the vertebra is seen below the 

 lateral plate, as described by Eigil Nielsen {Ophiurans from the Gulf of Panama, Cali- 

 fornia, and the Strait of Georgia. Papers from Dr Th. Mortensen's Pacific Expedition, 



Fig. 25. Ophionephthys magellanka, n.sp. Part of oral side (a); mouthpart 

 (jaw) of another specimen {b). Arm joints, dorsal side; joints 6-8 (c), and 

 from middle of arm ((/). X20. 



Lix, Vid. Medd. Dansk Naturh. Foren., 91, 1932, p. 265, figs. 7-8), is only just indicated 

 here. 



This species seems to be related to Ophionephthys stewartensis, Mortensen, from 

 Stewart Island (Mortensen, Echinoderms of New Zealand and the Auckland- 

 Campbell Islands. II, Ophiuroidea, p. 159), from which it is, however, very well dis- 

 tinguished by the shape of the buccal shields and the dorsal arm plates. 



Amphipholis squamata (Delle Chiaje) 



Amphipholis squamata, Ljungman, 1S71. Forteckning ofver nti J'estindien af Dr A. Goes samt 



under Korvetten Josefi7ias Expedition i Atlantiska Oceanen samlade Ophiurider. Ofvers. K. 



Vetenskaps Akad. Forhandl. Stockholm, 1871, p. 633. 

 A. patagonica, Ljungman, 1871. Ibid., p. 646. 

 Amphiura squamata, Koehler, 1908. Scott. Nat. Antarct. Exped. Asteries, Ophiures et 



Echinides, p. 607. 

 Amphipholis patagonica, Ludwig, 1898. Die Ophiuren d. Sammhmg Plate. Zool. Jahrh., Suppl., 



p. 764. 

 A. patagonica, Koehler, 1923. Swedish Antarct. Exped. Asteries et Ophiures, p. 113, pi. xiv, 



figs. 11-12. 

 A. squamata, Bernasconi, 1926. Una Ofiura vivipara de NecocJiea. An. Mus. Nac. Hist. Nat. 



Buenos Aires, xxxiv, p. 146, Lam. i-iii. 

 A. squamata, Mortensen, 1933. Danish 'Ingolf Exped. Ophiuroidea, p. 63. 



