Holobomolochus vervoorti Cressey 1983

Holobomolochus vervoorti

Holobomolochus ardeolae,—Vervoort, 1969:41 [misidenified].

MATERIAL EXAMINED.—Holotype (USNM 195371) and 2 paratype (USNM 195372) collected from the gills of 2 Microspathodon chrysurus (USNM 178061) from Martinique. An additional paratype (USNM 195373) from the same host, collected by the author at Carrie Bow Cay, Belize, 13 Mar 1980.

FEMALE.—Body form as in Figure 99. Total length 2.55 mm, greatest width 1.5 mm (measured at widest part of cephalon). Cephalon comprising about one-third total body length. Abdomen 3-segmented; segments measure (length × width) 179 × 235 μm, 132 × 207 μm, and 94 × 188 μm, respectively. Caudal ramus as long as wide (63 × 63 μm) with setae as in H. glyphisodontis (longest 413 μm), no ornamentation seen on ventral surface of rami or last abdominal segment (Figure 100).

First antenna 7-segmented, armed as in H. glyphisodontis. Rostral area without ventral hooks. Second antenna as in H. glyphisodontis. Labrum with wide band of fine spinules along posterior margin. Mouth parts as in H. glyphisodontis except a fourth short, naked seta present in the new species first maxilla (not seen in my earlier description of glyphisodontis but may be present in that species also). Maxilliped as in H. glyphisodontis.

Legs 1–4 biramose. Legs as in H. glyphisodontis except as noted as follows. Leg 1 sympod (Figure 101) with patches of small spinules as in figure (spinules are spatulate in H. glyphisodontis), first and second endopod segments each with a large patch of spinules on outer distal surface (absent in H. glyphisodontis). Leg 2 exopod (Figure 102) with 4 heavily sclerolized spines on outer margin of last segment, each with subterminal flagellum (last 2 not heavily sclerotized and without terminal flagellum in H. glyphisodontis). Leg 3 (Figure 103) as in H. glyphisodontis, except last exopod segment with 3 heavily sclerotized outer spines, each with a subterminal flagellum. Leg 4 (Figure 104) exopod as in leg 3 (differing from H. glyphisodontis in the nature of the outer spines); endopod as in H. glyphisodontis except inner seta on midsegment much shorter (in H. glyphisodontis this seta extends to tip of last segment). Leg 5 as in H. glyphisodontis.

MALE.—Unknown.

ETYMOLOGY.—The specific name “vervoorti” is for Dr. W. Vervoort whose 1962 review of bomolochids was the first major revision of the Bomolochidae.