218 
Nr. 20. Batissa fortis Prime. 
Batissa fortis Prime, 1860. Proc. Zool. London XXVIII. p. 320. 
— — — 1863. Act. Soc. Linn. Bordeaux XXIV. p. 324. 
— — — 1869 — 70. Cat. Corbic. Gen. Batissa Nr. 8. 
T. orbiculari, oblique inaequilaterali, tumida, crassa, intus violacea, epi- 
dermide nigro-virescente vestita, umbonibus prominentibus , erosis, antice in- 
clinatis ; dentibus cardinalibus crassis, subaequilateralibus ; lateralibus angustis, 
brevibus. 
Long l 9 |io"; lat. 2*|i 0 "; diam. 
Hab.: Nova Caledonia. 
Nr. 21. Batissa elongata Prime. 
Batissa elongata Prime, 1860. Proc. Zool. London XXVIII. p. 320. 
— — 1863. Act. soc. Linn. Bordeaux XXIV. p. 324. 
— — — 1869 — 70. Cat. Corb. Gen. Batissa Nr. 7. 
T. orbiculato-trigona, inflata, subcordiformi , inaequilaterali; epidermide 
fusca vestita; umbonibus tumidis erosis; valvis solidis, intus albis; dentibus 
cardinalibus inaequalibus, prominentibus, duobus bifidis; dentibus lateralibus 
brevibus. 
Long. 3*14"; lat. 2 1 |o"; diam. l 1 ^". 
Hab. Nova-Caledonia. 
Nr- 22. Batissa compressa Prime- 
Batissa compressa Prime, 1860. Proc. Zool. London XXVIII. p. 320. 
— — — 1869 — 70. Cat. Corbic. Gen. Batissa Nr. 4. 
T. ovato - orbiculari , tumida, compressa, subaequilaterali , intus violacea, 
epidermide polita, atro - virescente vestita; umbonibus erosis, dentibus cardi- 
nalibus subaequalibus ; lateralibus elongatis, serrulatis. 
Long. 2 2 | 3 "; lat. 2 , | 2 "; diam. l^io". 
Hab. Borneo. 
Nr. 23, Batissa inflata Prime. 
Batissa inflata Prime, 1860. Proc. Zool. London XXVIII. p. 320. 
— — — 1869 — 70. Cat. Corbic. Gen. Batissa Nr. 13. 
T. magna, orbiculari, inaequaliteraü , crassa, solida, obtusa, epidermide 
rugosa, fusco-nigrescente vestita; umbonibus productis, erosis, obliquis; valvis 
