22 
THE VOYAGE OE H.M.S. CHALLENGER. 
1. Alecto, Lamouroux. 
Alecto, Lamx., 1821 ; Blainville, Johnston, M.-Edw., Busk., Michelin, Gray, Norman, Heller, &c. 
Tubulipora (pars), Lamk., Smitt. 
Stomatopora, Bronn, d’Orb., Hincks (pars), &c. 
Aulopora (pars), Goldfuss, Reuss. 
Diastopora, (pars), Smith. 
1 Proboscina (pars), Audouin, d’Orh., Smitt (suhgenus). 
Character. — Zoarinm closely aclnate throughout ; simple or branched ; linear or 
ligulate. Zooecia uniserial, or disposed in distant, more or less regular, transverse series 
of two to four. 
(1) Alecto granulata, Milne-Edwards. 
Alecto granulata , M.-Edw., Rech. sur les Crisies, p. 13, pi. xvi. fig. 3, 3a; Johnston (pars), 
Busk, Brit. Mus. Cat., pt. iii. p. 24, pi. xxxii. fig. 1 ; Joliet. 
1 Alecto parasitica , Heller, Manzoni. 
Stomatopora granulata, d’Orb., loc. cit., p. 836, pi. 628, figs. 5-8 ; Hincks, Brit. Mar. Polyz., 
p. 425, pi. lvii. figs. 1, 2. 
Character. — Zoarium linear, branched, the branches often anastomosing. Zooecia 
uniserial, decumbent, with the oral extremities raised, subventricose below ; surface 
granular or coarsely ringed. 
Habitat. — Off Inaccessible Island, Tristan da Cunha, 60 to 90 fathoms (on dead shell). 
[British and Irish coasts ; Norway and Sweden, Roscoff, &c.] 
2. Tubuli'pora , Busk. 
Tubulipora, Bk., Engl. Cyclop., art. Polyzoa, col. xv.; Crag Polyzoa, p. 110; Lamouroux, 
Hagenow, &c., Bk., Brit. Mus. Cat., pt. iii. p. 24. 
Tubulipora (pars), Lamarck, Blainville, M. -Edwards, Johnston, Lonsdale, Michelin, Reuss, 
d’Orbigny, Gray, Smitt (1867), Hincks, &c. 
Ceriopora (pars), Hagenow. 
Plialangella sp., Gray, Smitt (suhgenus). 
Proboscina sp., d’Orbigny. 
Characters . — Zoarium springing from a minute subglobular or discoid cell, and 
expanding as it grows, into an irregularly lobate, or entire, reniform or fan-shaped, adnate 
growth, from which spring the elongated, cylindrical, tubular zooecia, free or partially 
connate and ascending ; disposed more or less regularly in series diverging from a 
mesial line or irregularly. 
