FX' HI NOD KinrATA. 



43 



Localities. — Oamaru ; Curiosity Shop ; Waiuica Plains, Southland; 

 Caversham (drawing). 



25. M. tuberculata, sp. iwv. Oval, depressed, some of the 

 tubercles at the anterior end larger, and raised; apex anterior; ambu- 

 lacra sunken, petah)id, unequal, the anterior pair shorter ; odd anterior 

 ambulacrum entirely obliterated ; anterior groove shallow. Length, 

 3-35 ; breadth, 2 8 ; "height, Ivl. 



LocaUlics. — Broken liiver (l). 



20. M. brevipetalata, sp. nov. ; Brissns Ircvipeialafa, Jlecior, 

 Cat. Col. Mas., 1870, ^:>. 192. Orbicular-cordate; vertex sub-central; 

 lateral ambulacra narrow% sub-equal, short, less than half the distance 

 from the apex to the margin ; anterior odd ambulacrum obliterated, 

 situated in a shallow groove, which extends round the margin ; 

 peripetalous fasciole indistinct, apparently sinuated. Length, 4 ; 

 breadth, 3 8. 



Localities. — Cobden. 



SCHIZASTER. 



Depressed in front, high and narrow behind; apex eccentric; an- 

 terior ambulacra nearly parallel to the odd anterior one, which is very 

 broad and deep ; posterior ambulacra much deeper. 



27. S. lyoni, sp. nov. Ovate, broad in front, and narrowed be- 

 hind, depressed ; apex posterior, surface smooth ; lateral ambulacra 

 narrow, straight, sunk ; the posterior pair only one-third of the length 

 of the anterior ; anterior groove narrow and deep ; peripetalous fas- 

 ciole flexuous. Length, 4 5 ; breadth, 4. 



Localities. — Cobden ; Culverden. 



28. S. rotundatns, Zittel, Voi/. Xovam, Palce., p. 04, 7;/. xi., 

 y. 1. Sub-orbicular, elevated behind, with numerous papilhT, apex 

 approaching the posterior margin, two genital pores ; anterior odd 

 ambulacrum placed in a deep broad groove ; anterior pair petaloid, 

 curved, directed towards the anterior margin, rather long, sunk, closed, 

 pores joined in pairs; ])osterior pair very short ; anus supra-marginal, 

 peristome lipped, transverse. Length, 1 9; breadth, 19; height, 1. 



Localities. — \\^aikato South Head ; Oamaru ; xlotea (Ilochstetter) ; 

 Cape Farewell (Ilochstetter) ; Weka Pass (l). 



29. S. eXOletUS, sj). nov. Sub-orbicular, narrower behind, de- 

 pressed ; ambulacra in deep grooves, posterior pair broad and rounded 

 at the end, about half of the length of the anterior pair, which are also 

 moderately broad and straight ; anterior groove broad and deep to the 

 apex. Length, 1-5; breadth, 1-45. 



Localities. — Grey Eiver ; Pakarori Eiver, West Coast of Nelson. 



