104 PROCEEDINCS OF THE NATIONAL MUSEUM. vou xxxin. 



The above notes were made on a specimen collected from the gill of 

 0((la/)iu.s calamus, Jul}' 14. 



On the' same date another specimen was obtained from the gill of 

 Diplodus sargus. Only the body was seen, and it was in poor condi- 

 tion. Dimensions, in millimeters, life: Length 1.5; breadth, anterior 

 0.12, maximum 0.25; length of an anterior sucker 0.06, breadth 0.04. 

 The cluster of copulatory spines resembles that of the specimen from 

 Calamtis. 



ASPIDOGASTER RINGENS Linton. 



Plate XV, iigs. 98,99. 



Asjyklogaster ringens Linton, Bull. Bureau of Fisheries, XXIV, pp. 367, 397, figs. 

 243-249. 



It is possible that either the genus As2ndog aster should be revised 

 in order to include this species, or, which is more in accord with 

 present tendencies, a new genus will have to be provided for it; 



This species was found in but one Bermuda fish, Iridio radiatus, 

 from which two specimens were obtained on Jul}^ 31. 



These specimens agree closely with forms found in Micropogon 

 undidatiis and Trachynotus carolinus at Beaufort, and referred, with 

 some hesitation, to this genus. 



The large A^entral disk is elliptical, with about forty-two loculi 

 around the border, lietween which are marginal sense organs. There 

 are about eighteen transversely elongated depressions, thus suggest- 

 ing Cotylaspis^ but there is a low median ridge which divides the 

 depressions into two longitudinal series of alveoli, which, with the 

 marginal loculi, make four rows of depressions, a characteristic of the 

 genus Aspidogaster. On account of the indistinctness of this median 

 ridge, however, the genus As jyldog aster offers but an insecure resting 

 place for this species. The upper lip is trilobed and the lower entire, 

 or slightly undulate. In the Beaufort specimens the under lip is tri- 

 lobed. The structure of the head suggests Cotylogasterh\xt there is only 

 one testis. In these specimens both the head and the conical tail pro- 

 trude a short distance beyond the ventral disk. Color white, except 

 in the dorsal region, where the mass of ova impart a yellow color. 



Dimensions, in millimeters, of specimen mounted in balsam: Length 

 2; length of disk 1.77, breadth 0.9; diameter of head 0.42, of neck 

 0.33; pharynx, length 0.18, breadth 0.14; ova 0.06 by 0.03 and 0.08 

 by 0.04. 



DISTOMUM MONTICELLII Linton. 



Plate VIII, fig. 58. 



Distomum montkelUi Linton, Proc. U. 8. Nat. Mus., XX, p. 518-520, pi. XLiv, 

 figs. 2-8; Bull. U. S. Fish Com. for 1899, pp. 451, 478, 482; Bull. Bureau 

 of Fisheries, XXIV, p. 334, etc., pi. xxii, fig. 158. 



This species was found in two Bermuda fishes. 



