Entobdella brattstroemi Brinkmann, 1952

Kearn, Graham C., Whittington, Ian D. & Evans-Gowing, Richard, 2007, A revision of Entobdella Blainville in Lamarck, 1818, with special emphasis on the nominal (type) species “ Entobdella hippoglossi (Müller, 1776) Blainville, 1818 ” (Monogenea: Capsalidae: Entobdellinae) from teleost flatfishes, with descriptions of three new species and a new genus, Zootaxa 1659, pp. 1-54 : 20-21

Entobdella brattstroemi Brinkmann, 1952

( Figs. 15H, 35)

This species was proposed by Brinkmann (1952a) to accommodate a single specimen collected by the LUCE of 1948-49 from the skin of the fine flounder, Paralichthys adspersus , caught off the coast of Chile (Golfo de Ancud, N of Isla Abtao; 41 o 47 ' 18 " S, 73 o 20 ' 55 " W). Two additional entobdellines from the same host species were collected on our behalf in 2004 by Dr M.T. González at Coquimbo, Chile (approximately 29°57’S, 71°25’W) (see Entobdella sp. 2 , Table 2). Although this locality is approximately 1300 km north of the type locality, after comparison with the holotype, we conclude that the Coquimbo specimens are also E. brattstroemi .

In 1 specimen 2, possibly 3, seminal receptacles were visible ( Fig. 35A) but the vagina was not identified.

The accessory sclerites of Dr González’s specimens ( Entobdella sp. 2 ; Table 2) are readily distinguishable from the accessory sclerites of other Entobdella spp. ( Figs. 15H, 35B). Inner and outer flanges are prominent, but these flanges are noticeably different in shape from those of the specimens from H. macrops and occupy the distal third of the sclerite as opposed to the distal half in specimens from H. macrops (cf. Fig. 15F, G). The accessory sclerites of parasites from P. adspersus are also stouter than those in parasites from H. macrops . Unfortunately, the holotype is unflattened and heavily overstained and remounting the specimen did not yield any more useful anatomical information. However, what can be seen of the accessory sclerites in the holotype is consistent with the distinctive shapes of the accessory sclerites of Dr González’s specimens ( Entobdella sp. 2 ; Table 2). The mean ratio of the lengths of the anterior hamuli and accessory sclerites based on the 3 adult parasites was 2.74 ( Table 3). The tendon associated with the accessory sclerite terminates on the anterior (proximal) end of the anterior hamulus ( Fig. 35A).

The entire ventral haptor surface, including the region anterior to the peduncle, is covered with papillae ( Fig. 35A). The papillae in the regions lateral to the median sclerites are so dense that no radiating rows were discernible.

Eyes are present ( Fig. 35A). The glands of Goto were not confirmed.