448 REPORT OF NEW JERSEY STATE MUSEUM. 
Septum, <A thin partition. 
Serrate. Notched like a saw. 
Sessile. Without a stem. 
Setaceous. Bristly. 
Setiform. Bristle-like. 
Shaft. Stiff axis. 
Shoulder-girdle. Bony girdle back of head forming attachment for front 
limbs. 
Soft dorsal. Posterior part of dorsal fin when composed of soft rays. 
Soft rays. Articulating rays of fin, usually branched. 
Spatulate. Spoon-shaped. 
Sphenoid. Basal bone of skull. 
Sphenotic. Side bone of skull. 
Spine. A sharp projecting point. When in fin usually unbranched, inarticu- 
late and more or less stiff. 
Spinous dorsal. Front part of dorsal fin when composed of spinous rays. 
Spiracles. Openings in head and neck, as in sharks, skates, etc. 
Stellate. Star-like, or with radiating ridges. 
Striate. Striped or streaked. 
Sub. Part, less than, not quite, under, somewhat, etc. 
Subcaudal. Under the tail. 
Subopercle. Bone below opercle, suture of connection hidden by scales. 
Suborbital. Below the eye. 
Suborbital stay. A bone extending from one of the suborbital bones across 
the cheek towards the preopercle. 
Subulate. Awl-shaped. 
Superciliary. Relating to above the eyebrow. 
Superior pharyngeals. Pharyngeals. 
Supplemental maxillary. A small bone along upper edge of maxillary. 
Supraclavicle. Bone interposed between clavicle and post-temporal. 
Supraoccipttal, Bone at back of skull above, usually with a raised crest above. 
Supraoral. Above the mouth. 
Supraorbital. Above the eye. 
Suprascapular. Post-temporal, or bone joining shoulder-girdle with the 
skull. 
Suspensorium. Chain of bones from hyomandibular to palatines. 
Suspensory bones. Bones fastening lower jaw to skull. 
Suture. Line of union of two bones. 
Symphysis. Point of junction of two parts, of lower jaw as tip of chin. 
Symplectic. Bone that keys together the hyomandibular and quadrate behind. 
Synonym. A different word with the same or similar meaning. 
Synonymy. <A collection of different names for the same group, species, or 
thing. 
Tail. Usually part of body posterior to the anal fin, sometimes postertor to 
vent. 
Temporal. Relating to the temples. 
Terete. Cylindrical and tapering. 
Terminal. At the end. 
