Neurosecretory Cell Types and Distribution in Unfed Female Hyalomma Dromedari (Acari: Ixodoidea: Ixodidae) Synganglion

Abstract : Thirteen Neurosecretary Cell (NSC) types have been observed in the unfed female Hyalomma dromedarii synganglion. Distribution of these types was based on cell shape, size, and staining reaction of their contents. The NSC are grouped in 13 centers, namely protocerbral, cheliceral, stomodeal pons, palpal, oesophageal, globular, olfactory, glomerular, four pedal, opisthosomal and postoesophageal. Each center contains one or more cell types. Reprints.