12 
THE VOYAGE OE H.M.S. CHALLENGER. 
§ /3. vittatce. 
(5) Catenicella sacculata, n. sp. (PL I. fig. 7). 
Character . — Zocecia elongated and attenuated downwards. Surface highly polished. 
A small delicate- walled pouch in front of the lower lip with four or five minute punctures. 
Orifice arcuate, with an entire lower lip. Lateral processes very small, reduced almost 
entirely to a small avicularium. Yittse wide and long-pointed at each end, and with 
a single row of dots down the middle. 
Habitat . — Station 122, lat. 9° 5' S., long. 34° A9'~53' W., 32 to 400 fathoms, red mud. 
At first sight this might be taken for a very robust form of Catenicella elegans, but 
they differ very materially. The chief differences are : — 1, The presence of a small 
perforated pouch immediately in front of the orifice, and formed as it would seem by 
the protrusion of the lower lip ; 2, the great width and peculiar form of the vittse ; 
3, the perfectly smooth surface ; and 4, the comparatively stunted condition of the 
lateral processes, in which the superior and inferior loculi are aborted, and the corre- 
spondingly minute size of the avicularia. 
(6) Catenicella elegans, Busk (PL I. figs. 2, 3, 5). 
1 Eucratea contei, Aud., Exp. i. 242 ; Savigny, Egypte, pi. xiii. fig. 1. 
Catenicella savignyi, Blainv., Man. d. Actinol., p. 462, pi. lxxviii. fig. 5. 
„ elegans, Bk., Voy. of Battles., vol. i. p. 361, pi. i. fig. 2 ; Brit. Mus. Cat., vol. i. p. 10, 
pi. ix. ; Macgilliv., Nat. Hist. Viet. Dec., iii. p. 23, pi. xxiv. fig. 10. 
Character. — Zocecia slender, ovoid, surface finely papillose. Ocecial cell geminate. 
Lateral processes reduced to the avicularian loculus, which is usually large and projecting, 
with a perforation at the base. Yittse long, narrow, with a single series of dots. 
Habitat . — Station 122, lat. 9° 5' S., long. 34° 49' W., 32 to 400 fathoms, red 
mud. Station 188, lat. 9° 59' S., long. 139° 42' E., 28 fathoms, green mud. Station 
135, Tristan da Cunha, 60 to 1100 fathoms, hard ground, shells, gravel." Station 163a, 
off Twofold Bay, 150 fathoms, green mud. 
[Bass Strait, 47 fathoms ; Port Cooper, Banks’ Peninsula ; Algoa Bay ; Port 
Dalrymple; Madeira, J. G. J. ; Mediterranean or Red Sea, Savigny; Victoria, 
Macgillivray.] 
Mr. Macgillivray remarks that in most of the specimens with ovicells the latera] 
processes are very small. In any case, however, they vary a good deal in size. In 
some cases (fig. 5) the surface seems to be quite smooth, presenting none of the minute 
papillae. 
