[CEYLON PEARL OYSTER FISHERIES 1904 SUPPLEMENTARY REPORTS, No. XVI. 



REPORT 



ON THE 



CAPRELLIDiE 



COLLECTED BY 



Professor HERDMAN, at CEYLON, in 1902. 



BT 



Dr. P. MAYER, 



OF THE NAPLES ZOOLOGICAL STATION. 



[With NINE TEXT-FIGURES.] 



The collection of Caprellids from Ceylon, kindly entrusted to me by Professor 

 Herdman, contains nothing of unusual interest. The genera Metaprotella, Mono- 

 liropus, Paracaprella, and Paradeutella are represented. Of these Metaprotella 

 and Paradeutella have already been reported from this region,* and exactly the 

 same species have now been found again, viz., M. excentrica, M. problematica, and 

 P. bidentata. Paracaprella is represented in the collection by a single female, 

 concerning the specific identity of which I am uncertain. On the other hand, there 

 is no doubt that the species of Monoliropus in this collection is new. The genus 

 itself was known before from East Indian waters, but not from Ceylon. 



I will first give a list of the species arranged according to the localities at which 

 they were collected, and will then make such remarks as seem necessary on the 

 specimens, and describe the single now species. 



List of Ceylon Caprellid^e Fatjnistically Arranged. 



Gulf of Manaar, Station LVIIL, 10 to 20 fathoms: Monoliropus falcimanus, n. sp. 



< 'heval Paar, shoal buoy, 4 fathoms: Monoliropus falcimanus, n. sp. 



Pearl Banks, off Aripu, 7 to 8 fathoms : Monoliropus falcimanus, n. sp. (?). 



* P. Mayer, 'Die Caprellidse tier Siboga-Expedition,' 1903, p. 145. 



