Then, the fish were laparotomized to collect the oesophagus, stomach, pyloric caeca
, mid-gut, rectum and liver.
Body length (BL), body width (BW), acetabulum diameter minimum (AD min), acetabulum diameter maximum (AD max), pharynx length (PL), pharynx width (PW), pharynx one half width (P1/2 W), oesophagus length (Oes L), intestinal caeca
length (InL), anterior testis length (T1L), anterior testis width (T1W), posterior testis length (T2L), posterior testis width (T2W), ovary length (Ov L), ovary width (Ov W), mehli's gland length (MGL), mehli's gland width (MGL), egg length (EL) and egg width (EW).
Castillo-Yanez F, Pacheco-Aguilar R, Garcia Carreno, F, Toro M (2005) Isolation and characterization of trypsin from pyloric caeca
of Monterey sardine Sardinops sagax caerulea.
Viscera were weighed and lengths of small intestines and caeca
This species has a well-defined stomach, with five to six blind sacs in a pyloric caeca
, and a very short intestine.
A long and wide oesophagus bifurcates to two intestinal caeca
over anterior to seminal vesicle, extending posteriorly to the lateral margins at the level of acetabulum.
Anterior projections of the midgut, sometimes described as gastric caeca
, are only found in Euphasmatodea and often obscure the proventricuius.
Detail of the posterior midgut (Pm) and gastric caeca
Caecal bifurcation pre-acetabular closer to oral sucker than to acetabulum, forming caecal shoulders before beginning descent from acetabular level; posteriorly caeca
thick-walled, with short diverticula on median and lateral sides terminating just above excretory bladder (Fig.
united posterior to testis, lateral diverticula without hematin pigment.
Diagnosis: Epigonus marisrubri is distinguished from its congeners by the following combination of characters: dorsal-fin rays VII + I,10; anal-fin rays II,9; pectoral-fin rays 18; pored lateral line scales 48 or 49; gill rakers 10+19-20; pyloric caeca
10; vertebrae 10 + 15; 2 pterygiophores between neural spines 9 and 10; pectoral fins long, reaching level of second dorsal-fin origin; caudal fin forked; tongue with a band of 2-4 rows of densely-set teeth on glossohyal; opercle with short, poorly ossified spine and 1-2 small spinelets; otolith oval, elongate, sulcus and cristae weakly developed.
Pharynx muscular, glandular; intestinal caeca
2, confluent in posterior trunk, lacking diverticula.