31. "' Stolidobranchia "'is an order of tunicates in the class Ascidiacea. 32. This tunicate is very well camouflaged. 33. The larvae of tunicates are known as tadpole larvae because of their resemblance to amphibian tadpoles. 34. The biologists have designed special low-temperature, low-oxygen tanks to house the tunicates . 35. Some tunicates can concentrate vanadium up to a level ten million times that of the surrounding seawater. 36. It has been noted to consume filamentous cyanobacteria, diatoms, gastropods, crustaceans, and tunicates . 37. There are a few types of existing bilaterians that lack a recognizable brain, including echinoderms and tunicates . 38. For example, the great majority of tunicates , pulmonate snails, opisthobranch snails and slugs are hermaphrodites. 39. A hollow nerve cord is found in all chordates, including tunicates ( in the larval stage ). 40. In the field of zoology, he conducted extensive studies on a variety of tunicates known as salps.
