328 SERPULIDA. 
1] species, but spread over 9 genera, Spirobranchus having three species, each of the 
others having but one representative. 
Twenty-six species of Spzrorbis are described by Caullery and Mesnil! (1897) in their 
important memoir on the genus, and collected from various parts of the world. 
Khlers’ (1901) has 13 Serpulids in the collection of Polycheets from the Strait of 
Magellan and from Chili, of which 8 are Spirorbids, the rest spread over 4 genera. 
In the careful account of the Serpulids from the Pacific Coast of N. America by Mrs. 
Pixell Goodrich’ (1912) 18 species are recorded, more than half of which are Spirorbids. 
The same authoress (1913) describes 6 in her report on the Serpulids of the Scottish 
Antarctic Expedition, 3 being Spirorbids, and 3 other genera having one each. She 
(1913) enters no less than 25 species secured by Prof. Stanley Gardiner in the “~ Percy 
Sladen Expedition ” to the prolific waters of the Indian Ocean. About half of these are 
under 2 genera, viz., Hydroides (5) and Spirobranchus (8), two of the other genera having 
2 species and Spirorbis 3. . 
Twenty-nine species appear from the wide area included in the Campagnes Scientifiques 
of the Prince of Monaco, and by the experienced hands of Prof. Fauvel! (1914); 7 of these 
are Spirorbids. aoe 
In Canon Norman’s Norwegian dredgings 3 species were obta ned, viz., Hydroides 
norvegica, Serpula vermicularis, and Ditrypa arietina. The same forms with the addition 
of Placostegus tridentatus at 305 fathoms were procured by the “ Knight Errant.” In the 
“ Porcupine ” Expedition of 1869 Protula protense, Filograna implexa, Hydroides norvegica 
and Ditrypa arietina were dredged. The list was slightly extended in the “ Porcupine ” 
Expedition of 1870, for, in addition to those mentioned above, a variety of Placostegus,* if 
not a new species, was obtained off Cape De Gatte in 45 fathoms, and Pomatocerus triqueter 
from Ras el Amush. The great numbers of Ditrypa from Bono Bay and their comparatively 
small size were noteworthy. 
The paucity of Serpulids in local faunas is remarkable. Thus in the “Catalogue of the 
Marie Invertebrates and Fishes of St. Andrews” (1875) 7 occur, two being Spirorbids, 
the others distributed over various genera. ‘The same number is given by Marion and 
Bobretzky® (1875) at Marseilles, two belonging to the genus Apomatus, the others singly 
to different genera. Leslie and Herdman’ (1881), in their ‘Invertebrate Fauna of the Firth 
of Forth,’ enumerate 3 Serpulids, two of which are Spirorbids. Langerhans®* (1880) enters 
11 from Madeira, three of which are Spirorbids. Some of the entries are doubtful. Harvey 
Gibson’ (1886) mentions 7 in his ‘Catalogue of the Vermes of the Liverpool District,’ 
but one of the two Spirorbids is uncertain. Nineteen species are entered by Lo Bianco 
i 
‘Bull. Se. France et Belgique,’ t. xxx, p. 185, pls. vii—x. 
© Polychzeten Magell. u. Chilen. Strandes.’ 
3 “Proc. Zool. Soc., 1912, p. 784. 
4 Fascicule xlvi. 
> Vide subsequent account. 
6 «Ann. Se. nat.,’ 6° sér., t. 11, p. 94. - 
7 «Proce. Roy. Phys. Soc. Edin.,’ vol. vi, p. 67. 
8 «Zeitschr. f. wiss. Zool., Bd. xxxiv, p. 118. 
9 «Proc. Lit. Phil. Soc. L’?pool,? vol. xl,-p: 159: 
10 « Atti Acad. Sc. Fisiche Mat. Napoli.’ vol. v, No. 11, pp. 81—93. 
