i68 



COPEPODS OF LAST CRUISE OF CARNEGIE 



Penrhyn Island, Lagoon 

 November 10, 1929; 9° 02' S, 157° 59' W; 10 species 



Acrocalanus gracilis 1 



Farranula carinata r 



rostrata 2 



Mesocyclops leuckarti a 



Oithona similis 3 



Oncaea minuta r 



venusta f 



Paracalanus parvus a 



pygmaeus c 



Undinula vulgaris 1 



This was an anchorage tow, at the surface, between 

 stations 159 and 160, and yielded 10 species, none of which 

 are worthy of comment except Mesocyclops leuckarti. All the 



other species in this list are typical pelagic forms, and here 

 is an equalh' t>-pical fresh-water form found abundantly in 

 their midst. Volume of tow, 32 cm'. 



Station 160 

 November 13, 1929; 10° 54' S, 161° S3' W; bottom depth, 2614 m; 74 species 



Depth of tow, m 

 Temperature, °C 

 Salinity, o,'oo 

 Volume of tow, cm' 



Acartia danae 



longiremis 



Aetideus armatus 



Amallothrix propinqua 



Calanus helgolandicus 



Calocalanus pavo 



Candacia aethiopica 



bispinosa 



norvegica 



simplex 



truncata 



Canthocalanus pauper 



Centropages calaninus 



elongatus 



furcatus 



Clausocalanus arcuicornis 



Clytcmnestra rostrata 



Copilia denticulata 



quadrata 



Corycaeus anglicus 



clausi 



crassiusculus 



dubius 



furcifer 



giesbrechti 



limbatus 



lubbockii 



pumilus 



speciosus 



typicus 



Danodes plumata, n. gen. and n. sp. 

 Eucalanus attenuatus 



elongatus 



Euchaeta marina 



Euchirella brevis 



curticauda 



Farranula carinata 



The temperature was high at the surface and did not change 

 at all in the 100 meters; the salinity and hydrogen-ion 

 concentration also remained practically unchanged. Thirty- 

 seven species were captured at the surface, 32 in the 50- 

 meter tow, and 59 in the 100-meter tow. Thirty-seven 

 species (50 per cent) were each confined to a single level and 



Farranula curta 



rostrata 



Haloptilus longicornis. . . . 



spiniceps 



Heterorhabdus spinifrons. 

 Labidocera acutifrons. . . . 



detruncata 



Lubbockia squillimana. . . 

 Lucicutia clausii 



flavicornis 



Macrosetella gracilis 



Mecynocera clausi 



Microcalanus pygmaeus. . 

 Microsetella norvegica. . . 



rosea 



Neocalanus gracilis 



tcnuicornis 



Oithona plumifera 



similis 



spinirostris 



Oithonina nana 



Oncaea conifera 



minuta 



notopa 



similis 



tenella 



venusta 



Paracalanus parvus 



Pleuroniamma gracilis. . . 



Pontellina plumata 



Pseudocalanus minutus. . 

 Sapphirina auronitens. . . . 



nigromaculata 



Scolecithricella abyssalis. 



Scolecithrix danae 



Undinula caroli 



darwinii 



17 were present at all three levels. Candacia, Corycaeus, 

 Farranula, and Oncaea were all found in each of the tows, 

 and 4 of the 5 species of Candacia appeared at the surface, 

 an exceptional distribution. The 100-meter tow contained 

 1 specimen of the new genus and species Danodes plumata, also 

 1 rather rare species of Scolecithricella and 1 of Amallothrix. 



