26 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 122 



Amallothrix paravalida Brodsky, 1930 



Figures 83-84 



Diagnosis (male) : The terminal segment of the left fifth foot has 

 two rows of spines and a rounded lamella. Total length 2.30 mm. 



Remarks : We are tentatively referring to this species a single male 

 specimen found in a sample containing two female A. 'paravalida. 

 The structure of the terminal segment of the left fifth foot of the 

 male of A. paravalida will distinguish this species from A. valida 

 (Farran) . 



Amallothrix robustipes Grice and Hulsemann, 1965 



Remarks: The present specimens have 2 setae on the second 

 inner lobe and 10 setae on the endopod of the first maxilla. The 

 two Atlantic Ocean specimens described by Grice and Hulsemann 

 (1965) have four setae on the second inner lobe and nine setae on 

 the endopod of the first maxilla. There are no rostral filaments on 

 the Indian Ocean specimens whereas there are two on the Atlantic 

 Ocean ones. The total length of the specimens is 1.00 and 1.20 

 mm. This is the first record of Amallothrix robustipes in the Indian 

 Ocean. 



IRacovitzanus species 



Figures 85-95 



Diagnosis (male) : Head and first thoracic segment separate, fourth 

 and fifth thoracic segments separate. Posterior lateral corner of fifth 

 thoracic segment indented. Abdominal segments elongate. Ros- 

 trum large, without filaments. First antenna exceeds furca by last 

 segment. Segments 8-10 of right first antenna fused. First and 

 second maxiUa of the type present in family Scolecithricidae. Max- 

 illiped greatly reduced and with few setae. Exopods of the fifth 

 feet 3-segmented, endopods 1-segmented and pointed. Total length 

 1.92 mm. 



Remarks: We are tentatively assigning this male to the genus 

 Racovitzanus based largely on the shape of the rostrum. Since it 

 may represent the undescribed male of a known species, we are not 

 describing it as new species. 



Scaphocalanus bogorovi Brodsky, 1955 



Figures 96-99 



Remarks: The present specimens agree with those collected by 

 us in the North Atlantic (Grice and Hulsemann, 1965). The range 

 of this species is here extended to the Indian Ocean. 



