Ophiuridai //v?/< KtrgaeLn' a Island. Hi 



is probably an eiTor, as suggested by Liitken, ' Zoological 

 Kecord' for 1872, p. 448, who gives Patagonia as the home 

 of this species. The Kerguelen examples at hand are rather 

 smaller, the diameter of the disk being 12 millims. ; but this 

 may be accounted for by age. The conical scabrous tubei^cles 

 on the disk are similar to those described by Ljungman ; the 

 oral shields are about as long as broad ; the adorals more 

 quadrangular than triangular, the angles being rounded, and 

 they are not a great deal smaller than the oral shields, the 

 oral sides being broader than the aboral, and the lateral margins 

 coiisequently converging slightly outwardly. The lower and 

 side arm-plates agree with the description of those of the 

 typical form, and the spines and arabulacral papillic also ; 

 but the dorsal ray-shields are not so broad as described by 

 Ljungman. 



Thus it will be seen that a few slight differences are found 

 in the specimens from Kerguelen's Island, but not sufficient 

 (at all events without comparison with the types) to Avarrant 

 the separation of this variety from the Patagonian species. 



O'phioglypha hexactis, sp. nov. 



Discus hexagonalis, angulis radiis interruptis, ad latera letter coii- 

 cavus, depressus ; papillaj orales (adquemque angulum) 7, apicalis 

 longissima, tres utriuque scnsim breviores, omnes coiiica), acutae ; 

 scuta oralia parva, ligouiformia, manubrio brevissimo latissiraoque 

 aboraliter sito, apice ad os verso, manubrio ipso cordiformi, 

 lateribus inferioribus convergentibus, leviter concaAdusculis ; 

 scuta adoralia praicedentibus coutigua, angustissima, linearia ; 

 infra ilia et iis transversa oris angulos occupantia sunt scuta duo 

 simOia, oblonga, subovalia, et eorum basi unicuni parvum api- 

 cali transverse situm ; radii 0, elongati, longitudine (juam disci 

 latitudo duplo vel triplo majorcs ; scuta inl'eriora — sextum a basi 

 transverse latissimum, breve, margine aborali medio leviter angu- 

 lato, lateribus brevissimis, rotundu truncatis, marginibus oralibus 

 aboralibus fere similibus, sed angulo medio productiore ; scuta 

 brachialia lateralia iufcrne adjuncta, juuctura) liiieis versus bra- 

 chiorum apicem sensim longioribus ; scuta superiora (propo brachii 

 medium) subquadrata, extra quam versus di.scura latiora, margine 

 cxteriorc arcuato, interiore concave, margiuibus lateraUbus rectis, 

 versus discum leviter vergcutibus ; scuta ali(|ua propius discum 

 forma longe divcrsa, scnsim dccrcsceutia, brevia, transverseque 

 lata, subovalia, ad scuta lateralia scutulis aliis parvis irregularibus 

 juncta ; disci squamae minuta), numerosa), forma et digestione 

 irregulares ; scuta radialia parva, elongato-subovalia, longe di- 

 stantia ; paj)illie ad latera iucisura) disci minima; iiumerosissimiB 

 (circitor 4()),etad basim brachiorum superiorum est lacinia papil- 

 laris sex suporioribus soriei alifc opposita ; spina? brachialas '\ 



