Basihyal subtriangular, width about 55% length; basihyal cartilage about 25% basihyal length.
Basihyal subtriangular, width about 50% length; basihyal cartilage about 10% basihyal length.
Basihyal subtriangular, width about 35 % length; basihyal cartilage about 30 % basihyal length.
Basihyal subtriangular, width about 50 % length; basihyal cartilage about 25 % basihyal length.
Basihyal subtriangular, width about 45% length; basihyal cartilage about 25% basihyal length.
The basihyal, ceratohyals, and basibranchials are present but shorter and thicker [ILLUSTRATION FOR FIGURE 4J AND K OMITTED]; moreover, the number of ceratobranchials and hypobranchials that develop may vary.
RAI 2 Partial deletions and distortions of midbrain/ hindbrain border region (MB/HB); eyes slightly closer together; axis slightly truncated; heart smaller with pericardial edema, otocysts slightly closer to MB/HB; tail slightly curled; deletions of the quadrate, pterygoid, and hyosymplectic cartilage; malformations of Meckel's cartilage, ceratohyals and the basihyal.
9): branchiostegals 5, first branchiostegal small, thin, and attached to ventral surface of narrow portion of ceratohyal, following three branchiostegals blade-like in appearance and attached at ventrolateral surface of broad portion of ceratohyal; posteriormost branchiostegal broadest, articulating with ventral surface of epihyal; basihyal broad, spatulate, slightly emarginate, with only posterior third ossified (Fig.
Antilligobius and Bollmannia both possess scales on the cheek and a spatulate basihyal, features not present in the other genera.
Basihyal rhomboidal, ossified posteriorly, strongly attached to hypohyals.
Hyoid bar joined to contralateral structure by strong ligament from medial face of hypohyals, coursing ventral to basihyal.