92 
THE VOYAGE OF H.M.S. CHALLENGER. 
Pulvinulina elegans, Cristellaria reniformis, Haplophragmium scitulum, 
Hormosina normani (broken), Ammodiscus tenuis, and Rhabdammina 
linearis. Some of the arenaceous tubes above alluded to are of con- 
siderable size, and may possibly belong to a Rhizopod like Rhabdammina 
discreta. 
Station 172. — July 22, 1874. Off Nukualofa, Tongatabu, Friendly Islands. Depth, 
18 fathoms ; coral. 
Foraminifera of the large calcareous types exceedingly abundant, the genus 
Orbitolites supplying a very considerable proportion of the whole. In 
addition to Orbitolites complanata and Orbitolites marginalis, the gigantic 
complex variety Orbitolites laciniata appears in great numbers. Of smaller 
species Nubecularia divaricata, Miliolina reticulata, Miliolina alveolini- 
formis, and Miliolina parlceri, Hauerina ornatissima, Vertebralina insignis, 
Truncatulina echinata, and Truncatulina rostrata are the most notable. 
Station 173 A. — July 29, 1874. Off Fiji. 12 fathoms; coral. 
Very similar in all respects to the last named. Orbitolites in great abundance, 
and beautifully perfect, with Operculina, A mphistegina, Tinoporus,Peneroplis, 
and Heterostegina, the last comparatively rare. There was but little fine 
material, consequently the list of the smaller species is limited. 
Station 174, A. B. C. — August 3, 1874. Lat. 19° 10' S., long. 178° 10' E. Off 
Kandavu, Fiji Islands. 
A. Depth, 255 fathoms; Globigerina ooze. 
B Depth, 610 fathoms ; bottom temperature, 3° '7 C. ; Globigerina ooze. 
C. Depth, 210 fathoms; sand. 
A. and B. were merely soundings, of which a small quantity only has 
been available for examination. They are essentially Globigerina muds with 
an admixture of shallow- water Foraminifera, and contain the following 
species in addition to a considerable list of Globigerina and Pulvinulina, 
namely : — Cymbalopora bulloides and Cymbalopora humilis, Chilostomella 
ovoidea, Patellina corrugata, Cassidulina calabra and Cassidulina bradyi, 
Ehrenbergina serrata, Textularia folium and Textularia aspera, Clavulina 
communis, Haplophragmium scitulum and Haplophragmium latidorsatum. 
C. is an exceedingly rich dredging, with the Foraminifera fauna of the 
deeper coral reefs. The following are some of the more characteristic 
species : — Cristellaria cultrata, Cristellaria italica, Cristellaria, siddalliana, 
Cristellaria vortex, Cristellaria calcar, Cristellaria papillosa, Cristellaria 
