Hurton.—New Zealand Sertularians. 257 
the 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 MONILIFERA. sp. nov. 
Hydrosoma strong, erect, dichotomously branched; pale brown. Hydrothecze 
alternate, crowded, tubular, the upper half slightly recurved ; arranged in 
several rows on the main stems, but in two rows onthe 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. 
Hydrothece distant, alternate, ovate ; aperture sinuated. Ovarian cells ovate, 
transversely wrinkled, with a toothed crown. 
Lyall Bay. (F.W.H.) 
SERTULARIA FUSIFORMIS. sp. nov. 
Hydrosoma lax, simple or sparingly branched, rather large. Hydrothecæ 
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, “ Dief. N.Z.” TI., 294. 
Hydrosoma long, lax, sparingly dichotomously branched, pale brown. 
Hydrothecæ opposite, tubular ; 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, l.c. IL, 294. 
Hydrosoma erect, pinnately branched ; pale brown. Hydrothece 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. 
Hl 
