HuTTON. — New Zealand Sertularians. 257 



tlie outer side, and an acute recurved tooth on the inner side. Ovarian cells 

 ovate, transversely wrinkled, with an acutely toothed crown. 

 Lyall Bay. (F.W.H.) 



SERTULARIA MONILIPERA. sp. nov. 



Hydrosoma strong, erect, dichotomously branched; pale brown. Hydrothecse 

 alternate, crowded, tubular, the upper half slightly recurved ; arranged in 

 several rows on the main stems, but in two rows on the branches ; aperture 

 entire, or with two obtuse teeth. Ovarian cells ovate, with strong moniliform 

 cross ribs, and with an entire edged tubular crown. 



Lyall Bay. (F.W.H.) On shells. 



SERTULARIA SIMPLEX, sp. nov. 



Hydrosoma short, simple or rarely branched, erect; pale yellowish brown. 

 Hydrothecse distant, alternate, ovate ; aperture sinuated. Ovarian cells ovate, 

 transversely wrinkled, with a toothed crown. 



Lyall Bay. (F.W.H.) 



SERTULARIA PUSIPORMIS. sp. nov. 



Hydrosoma lax, simple or sparingly branched, rather large. Hydrothecse 

 alternate, rather close, long ; aperture obliquely truncated, and with two 

 rounded teeth on the outer side. Ovarian cells fusiform, large, smooth, 

 pointed at the apex. 



Lyall Bay. (F.W.H.) On Fuci. Common, 



SERTULARIA BISPINOSA. 



Dynamene bispinosa, Gray, " Dieff. N.Z." XL, 294. 



Hydrosoma long, lax, sparingly dichotomously branched, pale brown. 

 Hydrothecse opposite, tubvilar ; aperture obliquely truncated, and with two 

 strong teeth on the outside. Ovarian cells urceolate, smooth, with a small 

 tooth on each side at the top. 



Lyall Bay. (F.W.H.) On shells, etc., abundant. 



SERTULARIA ABIETINOIDES. 



Dynamene abietinoides, Gray, I.e. XL, 294. 



Hydrosoma erect, pinnately branched ; pale brown. Hydrothecse crowded, 

 sub-opposite, tubular, slightly incurved ; aperture surrounded with about five 

 acute teeth. Ovarian cells urceolate, smooth, with a long blunt process on 

 each side at the top. 



Lyall Bay. (F.W.H.) Abundant, 



H 1 



