Holocrine

The venom glands of teleosts consist of an aggregation of holocrine cells derived from the epidermis but often sunken into the dermis, on either side of a spine, usually of dorsal or pectoral fin.

2007, Galina N. Solntseva, N. N. Dergunova (translator), Teresa Ott (linguistic editor), Morphology of the Auditory and Vestibular Organs in Mammals, with Emphasis on Marine Species, page 42, In Chiroptera and Insectivora, the holocrine glands can form glandular complexes.

The holocrine gland is the least common type. After the cell fills with secretory material, the entire holocrine gland cell discharges to the lumen of the gland to constitute the secretion. Sebaceous glands associated with hair follicles of the skin are the most common holocrine glands.