204 COPEPODA. 



to the female, but the abdomen consists of three segments : 

 the first is subglobose, about as long as the last segment of 

 the thorax and of somewhat greater width than length ; 

 the second is distinctly narrower than the first and scarcely 

 two-thirds the length of it ; the third segment is about as 

 long as the first, and is narrowed at the proximal end but 

 becomes wider posteriorly. Furcal seise three as in the 

 female. 



Hah/tat. Salcombe, 1875. A number of specimens were 

 obtained in gatherings from this place. The above descrip- 

 tion is prepared from these Salcombe specimens. 



THAUMALEUS LONGISPINOSUS (G-. C. Bourne). 



1890. Monstrilla longispinosa, G. C. Bourne, Quart. Journ. Micros. 



Sci. (n. s.) vol. xxx. p. 575, pi. xxxvii. tips. 1-4, 10. 

 1892. Thaumaleus l&ngispinosus, Giesbrecht, pp. 578, 583, 585, 



pi. xlvi. figs. 1-4, 6, 12, 13, 23, 30, 38, 42. 



Dr. Bourne obtained this species at Plymouth. It has 

 not, however, been observed in A. M. N/s collections, and 

 is included on Dr. Bourne's authority. One of the authors 

 (T. Scott) has recently obtained a single female off the 

 Shetland Isles. 



Tribe VI. CALIGOIDA. 



The following works and papers are those which will be 

 most frequently referred to in the following notes on the 

 Parasitic Copepoda, in addition to those which have already 

 been given at the commencement of this report on the 

 Copepoda in general (p. 125): 



18G1. STEENSTRUP & LUTKEN. Bidrag til Kundskaben om det 



aabne Ilavs Snyltekreba og Lernaeer. 

 1896. BASSETT-&MITH (P. W.). "List of Parasitic Copepoda of Fish 



obtained at Plymouth.'' Journ. Marine Biol. Assoc. of the United 



Kingdom, vol. iv. pp. 155-163. 

 1896. BASSETT-SMITH (P. W.). "Notes on Parasitic Copepodn of 



Fish obtained at Plymouth, with description of New Species." Ann. 



& Mag. Nat. Hist. ser. 6, vol. xviii. pp. 8-16, pis. iii.-vi. 



1899. BASSETT-SMITH (P. W.). " Systematic description of Parasitic 

 Copepoda found on Fishes, v\ith an enumeration of the known 

 Species." Proc. Zool. Soc. pp. 438-507, pi. xxvi. 



1900. SCOTT (THOMAS). "Notes on some Crustacean Parasites of 

 Fishes." 18th Keport Fishery Board for Scotland, pp. 144-188, 

 pis. v.-viii. 



1901. SCOTT (THOMAS). " Notes on some Parasites of Fishes.'' 

 19th Keport Fishery Board for Scotland, pp. 120-136. pis. vii., 

 viii. 



