168 DR. J. PEARSON ON MARINE FAUNA [Feb. 1, 



List of Stations at which Ilolothurians were obtained. 



Station I. Tunghi Bay. 



Bottom. Sand, mud, and shell. Depth. 5-18 fathoms. 

 Synapta grisea. 

 Holothuria marmorata. 

 H. albiventer. 

 II. scabra. 

 H. dofleinii. 



Station II. Maiyapa Bay. 



Bottom. Sand, mud, and coral. Depth. 10 fathoms. 

 Pseiodocolochirus violaceus. 

 Stichopus variegatus. 

 Mulleria lecanora. 

 Holothuria impatiens. 

 II. lineata. 



Station VI. Kero-Nyuni Bay. 



Bottom. Sand. Depth. 5-10 fathoms. 

 Pseudocolochirus violacei is. 

 Holothuria albiventer. 



Station VII. Pekawi Bay. Exposed coral-reef. 

 Cucumaria semperi. 

 C. turbinata. 

 Holothuria albiventer. 

 II. squamifera. 

 H. monacaria. 



Station IX. Ibo Bay. Reefs around Matemo Is. 

 Stichopus chloroi wtus. 

 Mulleria mauritiana. 

 M. miliaris. 

 Holothuria impatiens. 

 H. atra. 

 II. vagabunda. 

 II. curiosa. 

 H. atra, var. amboiuensis. 



Station XIII. Pemba Bay. 



Bottom. Mud. Depth. 10-20 fathoms. 

 Holothuria albiventer. 



Synapta grisea Semper. 



Synapta grisea Semper, 1868 (11); Ludwig, 1882 (15); Bell, 

 1884(17); Theel, 1886 (20). 



Two mutilated specimens from Station I. Tunghi Bay. 



The colour in spirit is grey with a greenish tinge. 



There are fourteen digitate tentacles, each being about 25 mm. 

 long. Owing to the bad condition of the specimen it is difficult 

 to say whether the digits of the tentacles are webbed. 



There appears to be very little difference between Synapta 



