| The common periwinkle can act as a host for various parasites, including Renicola roscovita, Cryptocotyle lingua, Microphallus pygmaeus and Himasthla sp. |
| During the neonatal period, these criteria are hypoglycemia, prolonged jaundice, microphallus, or traumatic delivery. |
| Sand crabs are a first intermediate host to the acanthocephalan Profilicolis kenti and the trematode Microphallus nicolli. |
| The patient with bilateral optic nerve hypoplasia had had neonatal hypoglycemia and microphallus but was not evaluated for GH secretion until the age of one year, and then for growth failure. |
