General History of the Marine Polyzoa. 327 
Trans. New Zeal. Instit. for 1890. This figure must be 
ignored, as the colour is unlike the species and the venation 
portrayed is also different from any known genus of 
Cicadidee. 
Cicada casstope, Huds. 1. c. p. 54,= Melampsalta nervosa, 
Walk. List Hom. i. p. 213. n. 166 (1850). 
L.— Contributions towards a General History of the Marine 
Polyzoa, 1880-91.— Appendix. By the Rev. THOMAS 
Hincks, B.A., B.S. 
{Continued from vol. viii. p. 480. ] 
‘Annals,’ August 1881 (p. 65 sep.). 
Mucronella teres, sp. n. 
Syn. Mucronella levis, MacGillivray, Trans. Roy. Soc. Victoria, July 
1882; Prodr. Zool. Vict. decade xii. p, 64, pl. exvi. fig. 3. 
There can be no doubt that MacGillivray’s IZ. levis is 
identical with the present species, of which it must rank as a 
synonym. ‘The only differences between the two as described 
are that in JZ. devis three spines are present in front of the 
ocecium on each side, whilst in the specimens which I 
examined there were only two, and that the small nodular 
projection on the inner face of the mucro in JZ. teres is not 
noted by MacGillivray. ‘hese points are quite immaterial. 
Ibid. (p. 65 sep.). 
Mucronella spinosissima, sp n. 
This species is identified by Waters* with J/ucronella 
Peachiti, var. octodentata, Hincks, and Miss Jelly has taken 
the same view in her ‘ Catalogue ;’ but I am quite unable to 
accept their decision. Jf. spinosissima is, I have no doubt, 
identical with the fossil form from New Zealand described 
by Waters (oc. ett.) ; it agrees with his diagnosis even in 
* “Tertiary Cheilostomata from New Zealand,” Quart. Journ. Geol. 
Soe. for Feb, 1887, p. 56. 
