OphimidiM /roJH Kenjadeiiti hland. Ill 



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

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

 of this species. The Kerguelen examples at hand arc rather 

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

 may be accounted for by age. The conical scabrous tubercles 

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

 oral shields are about as long as broad j 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 

 consequently converging slightly outwardly. The lower and 

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

 typical form, and the spines and ambulacral papilUe also ; 

 but the dorsal ray-shields ai'e 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 warrant 

 the separation of this variety from the Patagonian species. 



O'phioghjpha hexactiSy sp. no v. 



Discus hexagonalis, angnlis radiis intcrruptis, ad latera leviter con- 

 cavus, depressus ; papillae orales (adquemque angiilum) 7, apicalis 

 longissima, tres utriuque sensim breviores, oinnes coiiictc, aciitte; 

 scuta oralia parva, ligouiforraia, inanubrio brevissimo latissimoque 

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

 hiteribus inferioribus coiivergentibus, leviter coiicaviusculis ; 

 scuta adoralia prascedentibus coutigua, angustissima, linearia ; 

 infra ilia et iis transversa oris angidos occupantia sunt scuta duo 

 similia, oblouga, subovaUa, et eorum basi luiicum parvum api- 

 cali transverse situm ; radii 6, elongati, longitudiue (juam disci 

 latitudo duplo vcl triplo majores ; scuta inferiora — sextum a basi 

 transverse latissimum, breve, niargine aborah medio leviter angu- 

 lato, lateribus brevissimis, rotunde truncatis, marginibus oralibus 

 aboralibus fere similibus, sed angulo medio produotiore ; scuta 

 bracbialia lateralia infenie adjuncta, junctura) lineis versus bra- 

 cbiorum apicem sensim longioribus ; scuta superiora (projie brachii 

 medium) subquadrata, extra quam versus discum latiora, margine 

 cxteriorc arcuato, iuteriore concavo, marginibus lateraHbus rectis, 

 versus discum leviter vergentibus ; scuta alicjua propius discum 

 forma longe diversa, sensim deorescentia, brevia, transverseque 

 lata, subovalia, ad scuta lateralia scutulis aliis parvis irregidaribus 

 juncta ; disci squama? minutaj, numerosa?, forma et digestione 

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

 stantia ; papilke ad latera incisune disci minimiie luimerosissima; 

 (circiter 40),ctad basim brachiorum superiorum est lacinia papil- 

 laris sex superioribus seriei alia? opposita ; spiuie brachiales 3 



