88 PERCY SLADEN TRUST EXPEDITION 
Some specimens from 8S. Vincent, Cape Verde Islands, are also present but in a poor 
state of preservation. 
This species has already been fully described by Huxley (28) 1855 and Saint-Joseph 
(44) 1894. 
It has been recorded from the Gulf of Aden by Gravier (21), who obtained a 
colony to the north of Ambouli in the Gulf of Tadjourah. He, however, failed to find 
any in process of budding, whereas all four stages recorded by Saint-Joseph (44, p. 343) 
are present in the material collected near Zanzibar in the spring and summer of 1901 
and 1902. 
The number of thoracic segments was very variable between 7 and 9. 
Genus Protuta, Risso (43) 1826. 
Generic characteristics: 1. No operculum. 2. Collar setz simple tapered blades. 
3. Terminal dorsal gland present. 
21. Protula tubularia, Montague (36) 1803. 
For synonyms see Saint-Joseph (44) and Fauvel (18). 
Specific characteristics after Fauvel (18, p. 693): 1. Ventral lobe of collar entire. 
2. Abdominal setze sickle-shaped. 
Locality. Three specimens from Porto Praya, Cape Verde Islands. 
The largest specimen is 30 mm. long without its branchial crown, which is missing. 
I could only find simple bladed sete in the thorax so that these specimens seem to 
resemble those from Courseulles described by Fauvel (18, p. 694) in this particular. 
The bodies are long, narrow and almost cylindrical with the usual wide folded 
thoracic membrane. Saint-Joseph (44) has given a detailed account of this species. 
22. Protula intestinum, Lam. 
Specific characteristics after Fauvel (18, p. 694): 1. Ventral lobe of collar notched 
in median line. 2. Abdominal sete geniculate. 
Localities. One specimen dredged off Zanzibar, another in 10 fathoms off Wasin. 
A portion of a thin, smooth tube 5 mm. in diam. from same region. 
The specimens are small forms less than 3 cm. with distinctly notched colourless 
collars. During life the numerous gills were also “colourless with bands of orange spots 
and the body was slightly tinged with scarlet.” The abdomen was wide and somewhat 
fusiform. 
Prof. Stanley Gardiner’s collection contained one large orange specimen from 
Cargados Carajos, 30 fathoms; this, without its branchial crown, was 140 mm. long 
and the greatest width of the abdomen was 21 mm. 
Genus Srrrorsis, Daudin (14) 1800. 
Characteristics of genera and sub-genera have already been given (41). 
