Now he saw far above him the backbone of the apparatus and its big ribs, "like the neural and haemal
canals," said Kurt, who had dabbled in biology.
Each neural spine and arch ossified first, followed by the centrum and then by the haemal
arch and spine.
The centrum is readily differentiated into four intermedialia by the basidorsal and basiventral insertions for the neural and haemal
arch cartilages (Fig.
Two anal pterygiophores before haemal
spine of first caudal vertebra (in 18).
1 and 3), appear to be uniquely derived homologous characters that may serve to distinguish Apolemichthys from related genera: namely, lateral expansion of the anterior 2-5 haemal
spines (unmodified in C.
At dig's end, three weeks later, museum staff returned to Brisbane with 15-20 bones, including vertebrae, haemal
arches, an ankle bone and part of a hip bone.
8) Thus, not many people use such CAs as haemal
(~ blood), osseous (~ bone), caseous (~ cheese), etc.
Placed within the subfamily Ammodytinae, which also includes the genera Gymnammodytes and Hyperoplus, Ammodytes is diagnosed by the presence of scales deeply embedded in dermal plicae below the lateral line, a highly protrusible upper jaw (Pietsch, 1984), and non-expanded neural and haemal
spines on the caudal vertebrae (Ida et al.
The anteriormost vertebra with a haemal
spine is considered to be the first caudal vertebra; the terminal vertebral element (= "urostylar vertebra"), with which the hypural bones articulate, is included in the vertebral counts.
Anterior parapophyses small, directed laterally, anteroposterior series becoming larger, directed posteriorly to form haemal
arches of caudal vertebrae.
Description: Body slightly elongate and laterally compressed; first dorsal spines VII; pterygiophore formula of first dorsal fin 3(221110); second dorsal fin I,11-12; first and second dorsal fins separate from each other and from caudal fin; pectoral rays 18-21; anal fin I,11-13, first two anal pterygiophores inserted anterior to first haemal
spine, remaining pterygiophores in approximately 1:1 ratio with caudal vertebrae; total vertebrae 27, 11 precaudal and 16 caudal; pelvic fins with one spine and five rays; vomerine teeth absent; mouth large, 10.