32 Goal 
XVI. CCELENTERATA. 
Systematic. 
Beroe cucumis , Vanhoffen, Nordisches Plankton ii, p. 7, figg. 16 & 17 ; 
B. cucumis , Arctic regions, history, occurrence, Romer, Fauna Arctica 
iii, p. 81 ; B. cucumis , Faeroe Channel, Fowler, P. Zool. Soc. London 
1903, i, p. 117 ; B. forskalii , p. 22, pi. ii, figg. 4-7, pi. iv, fig. 7, 2?. 
pandora , p. 23, pi. ii, figg. 8 & 9, pi. iii, figg. 9 & 10, Indo-Malay, 
Australia, Japan, characters, Moser, Siboga-Exped. xii ; B. ovata , de- 
velopment and differentiation of organs, Fischel, Arch. Entwickmech. 
xv, pp. 679-750, 21 figg. ; B. pandorina , Japan, characters, Moser, 
Siboga-Exped. xii, p. 24, pi. iii, figg. 1-8, pi. iv, figg. 4-6, n. sp. 
Bolina infundibulum , Vanhoffen, Nordisches Plankton ii, p. 5, fig. 11 ; 
B. infundibulum, Arctic regions, history, occurrence, Romer, Fauna 
Arctica iii, p. 78. 
Cestus veneris, Vanhoffen, Nordisches Plankton ii, p. 6, figg. 14 & 15. 
Dry odor a glandiformis, Vanhoffen, t. c. p. 4, figg. 8 & 9. 
Euplokamis cucumis, Vanhoffen, t. c. p. 3, fig. 7. 
Hormiphora sibogce, Indo-Malay, characters, Moser, Siboga-Exped. xii, 
p. 13, pi. ii, figg. 1-3, n. sp. 
Lampetia elegans, Malay Archipelago, characters, Moser, t. c. p. 15, pi. i, 
fig. 7, n. sp. 
Lesneuria hyboptera , Vanhoffen, Nordisches Plankton ii, p. 4, fig. 10. 
Mertensia fabricius, characters, Vanhoffen, t. c. p. 2, figg. 1-3 ; M. ovum, 
Arctic regions, history, occurrence, Romer, Fauna Arctica iii, p. 73. 
Mnemiopsis leidyi, Vanhoffen, Nordisches Plankton ii, p. 6, figg. 12 & 13. 
Pleurobrachia pileus, Vanhoffen, t. c. p. 3, figg. 4-6 ; P. pileus, Arctic 
regions, history, occurrence, Romer, Fauna Arctica iii, p. 75 ; P. 
globosa, p. 7, pi. i, figg. 1-4, P. pigmentata, p. 8, pi. i, figg. 5 & 6, pi. iv, 
figg. 1-3, Indo-Malay, characters, Moser, Siboga-Exped. xii : n. spp. 
