VI 
to 114, 75 of which are to be described as new species. They belong to 18 different genera, 
two of which are introduced to science as new. They can be arranged in the following way: 
NAME OF GENUS Number of species Number of new species 
Eopas. Wwitind s  erais oh on ee ea 2 — 
Poecitasma .Wainwintan oes. 2s -n ee yi 3 
Dichelaspis Darwin . ae 5 A 
ME SALAS MEAOCK ee) ee ee | 2 I 
ALCPASAS | NWANS Ses Pint ede eka 5 5 
WIErOlepas Se SEM rts ee canons I I 
Wola AS Cache se. 828) soc tee eee 2 I 
Scalpellum Leach............| 38 (1 spec. with 2 var.) 32 
Pollieipes Weal: gen.) iron eee I — 
Lithotrya G. B. Sowerby. . . 4 I 
Verruca Schumacher:) - i aes -e y, 6 
VE CMARUS: HNUICEOT ya deena tl eee 26 (2 spec. with numerous var.) 16 
SAGAS tle. CACIN aN Un tne eye us (2) yl) 
TICE CLES Mer CON eden We a ee 2 2 
Tewachia. Schumacher: es e442 4 | 22 
Pypcoma each esses 7 ot ee: 3 2 
Creu Sig MECAC ais Wy ee ewtre sag ate I (2 var.) — 
Chihamalys. Ranzan i) ) se) ee nme 2 ; == 
Total OnMh ae ee ee 75 
Here follows a list of all the species collected, arranged according to the depth at 
which they were found to occur: 
NAME OF SPECIES | Depth at which collected 
. . | . . . 
Lepas anserifera Linn $... +... ...... +. ~ | Floating ebjects;keelof MS: “Sibosayjete. 
Lepas fascicmlaris EM, (Gey Soll) 229 v2 oie Aopen ek loatime Zojects. 
Balanus tintinnabulum Linn. var. validus Baas 
Balanus tintinnabulum Linn. var. costatus n. var. 
Balanus tintinnabulum Linn. var. plicatus n. var. 
AIL CPAS STULNOU WME I SP see ee ieee 
Lbla Cumingt Darwin 
Ibla stbogae n. sp... . 
Pollicipes mitella Lea. 
Lithotrya conica n. sp.. 
Keel of H. M.S. “Siboga” 
Reef-exploration. 
Reef- and shore-exploration. 
Shore-exploration. 
Shore-exploration. 
Reef-exploration. 
ee 
' The present report contains the description of a third (a second new) species of Acasta which was also collected of late in 
the Malay Archipelago, but which was not represented in the Siboga collection. 
