OF KACHH AND KATTYWAE. 67 



The type of the genus Breynia is the recent Breynia Australasioe, the Spatangus 

 Australasice of Leach, from South Australia. A second species described by Gray, 

 'Catalogue of Echinida,' is from "Western Australia. His description, however, is 

 difficult to understand, as he says there are tubercles on the posterior interambulacrum. 

 Probably this is a misprint for anterior. The real and only diflference between this and 

 the southern form (which is also now found in the Chinese and Japanese seas and in 

 Torres Straits) is that the number of tubercles is greater in the western form. Alex. 

 Agassiz does not recognize this second species, however. 



The recognized species is carefully described by Alex. Agassiz in his 'Revision of 

 the Echini ;' and he notices the complete obliteration of the inner pores of the lateral 

 and posterior ambulacra within the internal fasciole, and the paucity of great tubercles 

 on either side of the anterior ambulacrum. 



' Genus TEOSCHELIA, gen. nov. 



The test is long, high, oval, notched in front, truncated behind. Apical system 

 excentric in front; madreporic passing between the posterior ocular plates. Lateral 

 ambulacra in very deep grooves ; pores large ; poriferous zones not closed ; inner pores 

 of antero-lateral ambulacra small. Peristome excentric in front, broader than long, 

 posterior lip well developed. Periproct high up in the truncation. Large sunken 

 tubercles in the interradia, except the posterior. A peripetalous fasciole passes 

 between the great tubercles on the lateral interradia. A subanal fasciole well 

 developed. 



1. Teoschelia tuberculata, Duncan & Sladen. Plate VII, Figs. 9-12 ; Plate XI, Fig. 5. 



The test is irregularly oval in outline and largest anteriorly ; abactinally it is 

 rounded in front, slightly notched at the margin by the anterior groove, broadest behind 

 the apical system, which is excentric in front, nipped-in posteriorly, and truncated 

 behind, the truncation sloping gently from above downwards and forwards. The test 

 is longer than broad and broader than high, and the height is one half of the length ; 

 it is generally tumid, the transverse outline of the abactinal surface being nearly 

 hemispherical. The margins are rather sharply rounded and the actinal surface is 

 generally slightly convex, except at the narrow flat plastron, the posterior extremity of 

 which projects decidedly downwards. The highest point of the test is nearly central 

 and behind the apical system, the slope is gradual posteriorly, and there is a bold curve 

 anteriorly. 



Length of test 64 millim. ; breadth &4 millim. ; height 32 millim. The length to 

 the breadth 1 : 0-843 ; the length to the height 1 : 0-5. 



The apical system is far in front and slightly posterior to the third of the length 

 from the anterior margin. The peristome is also excentric and in front, but it is 

 slightly posterior to the position of the apical system. The periproct is at the top of 

 the posterior truncation and just below the ending of a rounded-off keel ; it is large, 



k2 



