- 
144 Prof. M‘Intosh’s-Notes from the 
goes on readily, yet it is stated they grow in quiet nooks at 
Dongonah. The long branchiz are richly pigmented, and 
each animal is provided with a pair of eye-specks composed 
of a group or crescent of four or five points. The web at 
the base of the tip of the collar-bristles has eight or nine 
teeth. The tips of some of the branchiw in a few are 
enlarged. In others this is not seen. One had more slender 
pinne than usual, and in this the tips of two of the filaments 
presented enlargements of the sausage-shape with lateral 
elands asin S. @dificatriz. All have six pairs of anterior 
bristles, viz. first and five following. No opercula are 
present. One or two buds (early) were attached to the 
uurse-stock ; and many young forms occurred. Buds thus 
develop in the quiescent condition of the reproductive 
elements, which were not visible. 
Dongonab, Red Sea, 2.2.1916. 
Since December (1915) the reproductive elements have 
been developed, the large ova occurring in masses in the 
non-bristled region behind the “ thorax,” leaving the posterior 
and caudal regions free. In some the spaces between the 
septa were filled with a uniformly granular mass. In a 
small form, which seemed to be male, the elements filled the 
posterior and caudal regions to the tip, whilst anteriorly the 
masses reached the thoracic border. No buds were observed 
in this series. The tips of the branchial filaments were 
slightly enlarged in some ovigerous forms, the outline 
being ovoid rather than sausage-shaped as in S, edificatriz, 
and in this respect they agreed with those procured in 
December, aud in which the reproductive organs were not 
developed ; indeed, some of the latter had large processes, so 
that this does not appear to be connected with the develop- 
ment of the gonads. The young as well as the adults pre- 
sented the same slight enlargements of the terminal processes 
- of the branchial filaments. 
Dongonab, Red Sea. 5.1916. 
Since February the reproductive elements in the body have 
disappeared, and more frequeut instances of budding present 
themselves, the buds arising in a similar manner from the 
posterior end in front of the pygidium which forms the anal 
extremity of the bud. The tentacles develop early, and 
enable the eye to detect the bud even when very small. At 
a little later stage the outline anteriorly is marked by a 
separate and symmetrically shaped area—appareutly the 
rudiment of the “ thorax.” 
