ERYOZOA EEOjI XEW ZEALAND. 



339 



Oat of the 28 species or varieties 18 are known living, 6 at least 

 from ]\ T ew Zealand, 10 from either New Zealand or Australian 

 waters, and 8 have been found fossil in Australia. This briugs the 

 number of Chilostomata and Cyclostomata up to 106 ; and the 

 second part entirety agrees with the first in indicating that they are 

 comparatively recent. 



In figs. 1, 4, 14, 15 (PI. XYIIL), the size is taken from photo- 

 graphs which were used, and stud)' photographs of several species 

 mentioned are deposited with the Society. 



1. Idmoxea serpexs (L.). 



For synonyms see Hincks, Brit. Mar. Polvz. p. 453, pi. lxi. figs. 



2. 3 ; pi. lx. fig. 2 ; and Pergens, Plioc. Pry. von Skodos, Ann. Nat.- 

 hist. Hofmuseums, vol. ii. p. 5. 



Some fine specimens from the Petane Marls are entirely adnate on 

 an oyster-shell, throwing out numerous strap-shaped rays. 



The ovicells in recent Naples specimens occur below the junction, 

 spreading downwards, and with a broad funnel-shaped opening. 



Loc. Living: European Seas ; New Zealand. Fossil: Pliocene of 

 Sicily and Calabria ; AYaipukurau ; Petane Marls ; Tommy Gully 

 (retane) ; near Napier. 



2. Idmoxea eamosa (d'Orb.). 



Reptotubigera ramosa, d'Orb. Pal. Fr. p. 754, pi. 751. figs. 1-3. 



? Proboscina Euclesi, Haime, Bit. Foss. de la Form. Jurassique 

 p. 167, pi. vi. fig. 9 ; Pergens & Meunier, Annales Soc. Boy. Malac. 

 de Belgique, vol. xxi. p. 217. 



This grows much like Ichnonea serpens, and at one time I thought 

 that the specimens were only worn examples of that species ; but 

 the zocecial tubes are scarcely raised and equidistant, whereas in 

 I. serpens the central zocecial tubes are much raised and connate, with 

 outlying separate zocecia. The series are about 0"5 millim. apart. 

 In one specimen, from near Napier, more considerable exjoansion 

 takes place ; and this form at one time I separated as coniinuata. 

 This last grows much like Tubidipora lobulata, but the rays are in 

 series. 



Loo. Fossil : Cretaceous ; vVaipukurau and near Napier. 



3. Idikosea contobta, Busk. 



Ichnonea contoria, Busk, Cat. Mar. Polyzoa, pt. iii. p. 12, pi. viii. 



A specimen from the neighbourhood of Napier forms an anasto- 

 mosing mass. The branches are about 2 millim. across, and in 

 section are subtriangular, somewhat rounded on the dorsal surface. 

 The series are about 0*8 millim. apart, with 6 or 7 zocecia in a series; 

 dorsal surface with fine longitudinal lines. 



The surface is so much worn that it is impossible to judge how 

 much the zooecia projected. 



Tennysonia stellata has a row of zocecial pores, between which 

 there are cancelli. Before comparison with the British- Museum 



